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A fever in your dog can escalate fast. Do you know the signs before it’s too late? Knowing your dog’s normal temperature isn’t just smart, it’s essential for catching illness early. As a veterinarian, I often hear pet parents ask, “What’s a normal dog temperature, and how can I tell if my dog has a fever?” The truth is, knowing your dog’s baseline temperature can be the difference between early treatment and a dangerous delay.
In this guide, I’ll walk you through the normal dog temperature range, how to accurately check it, and the telltale signs your pup might be fighting off an illness. You’ll also learn what causes fever, when to worry, and what you can do at home. This article is backed by my veterinary experience and the latest canine health standards.
What Is A Dog’s Normal Temperature?
Your dog’s internal temperature plays a crucial role in maintaining overall health. According to the American Kennel Club (AKC), unlike humans, who have an average body temperature of 98.6°F, a normal dog temperature typically ranges between 99.5°F and 102.5°F. This means canines have a higher body temperature than humans and have a wider range of what’s “normal.” So, anything outside of this window may signal an underlying health issue.
Why Does This Matter?
Even slight deviations can be early signs of infection, inflammation, or environmental distress. Dogs can’t tell us when something’s wrong. So, knowing their baseline temperature gives you a powerful tool to detect illness before it becomes serious. Consistent temperature checks, especially when your dog shows signs of illness, can aid in early diagnosis and treatment.
Vet Tip: Keep a record of your dog’s resting temperature when they’re healthy. This helps your vet make more informed decisions if your dog ever falls ill.
The normal temperature for a dog varies depending on their age, size, general health, and how you take their temperature. But you can also expect their temperature to fluctuate depending on the temperature of their environment and whether they’ve been exerting themselves.
For example, the average dog temperature for an adult dog is between 98.6°F and 102°F. However, puppies often have slightly higher temperatures than adult dogs, and it’s not uncommon for them to have a temperature of 102.7°F without being unwell.
Dog Temperature Chart
Not all dogs run the same temperature, even when they’re healthy. Just like people, your dog’s normal body temperature can vary slightly based on age, breed, and even size. That’s why a one-size-fits-all temperature range doesn’t always apply.
Here’s a quick-reference chart to help you understand what’s typical:
| Puppies | Adult Dogs | |||
| C | F | C | F | |
| Low | ||||
| Normal | 37.0-39.3 | 98.6-102.7 | 37.0-38.9 | 98.6-102.0 |
| High (Fever) | >39.4 | >102.9 | >39.0 | >102.2 |
Knowing your dog’s “normal” is key. For the most accurate and personalized information, I recommend discussing your dog’s health with your veterinarian, who can provide guidance tailored to your dog’s unique characteristics. And, if you’re ever unsure whether a reading is concerning, consult your vet. We’d rather get a cautious call than miss something early.
Vet Insight: If your dog’s temperature is slightly above or below these ranges but they’re acting completely normal, don’t panic. Look at the full picture: appetite, energy, and body language matter too.
How To Accurately Take Your Dog’s Temperature At Home
Yes, you can take your dog’s temperature at home. But unlike humans, it’s really tricky to get an accurate reading from a thermometer in dogs if you’re placing it in their axilla (armpit). Equally, you can’t ask your dog to stay still while you hold a thermometer under their tongue – they’re just likely to chew on it!
So, if you need to take the temp of your pooch, where’s best? The most accurate readings are achieved by placing a well-lubricated thermometer into your dog’s rectum. It may sound a little awkward (and yes, your dog might give you that look), but it’s the gold standard when accuracy matters.
Step-by-Step: Taking Your Dog’s Rectal Temperature
- Use a pet-specific digital thermometer. Avoid glass ones as they can break
- Apply a water-based lubricant (like KY Jelly) to the tip
- Have a helper gently hold your dog still while you lift the tail
- Insert the thermometer about 1 inch into the rectum, slowly and gently
- Wait for the beep, then remove and read
Most dogs tolerate it better than you’d expect, especially with treats and calm praise. The whole process takes under a minute. Watch this short video showing how simple it can be when you have an extra pair of hands.
Vet’s Tip: Always disinfect the thermometer before and after use. Keep it stored separately and labeled clearly for pet use only.
Not Ready For The Rectal Route?
However, if you’re not confident doing this, or if you don’t have anyone to hold your dog still, it’s best to leave it to your veterinarian. The reading from a rectal thermometer can also be inaccurate if there is a lot of fecal material in the rectum. So, if you take your dog’s temperature and it isn’t what you’d expect, try taking it again once they’ve done a poop, just in case. But only if it’s safe to wait that long for a reading.
Best Thermometers For Dogs & Alternatives To Rectal Thermometers
Not every dog (or dog parent) is thrilled about rectal thermometers, so are there any good alternatives? Yes, but with a few caveats.
Rectal Thermometers: The Gold Standard
Veterinarians agree that rectal digital thermometers designed for pets offer the most accurate readings. They’re fast, affordable, and reliable, especially during illness or emergency situations.
The iProven PET Thermometer is one of the most popular on the market and our favorite dog thermometer overall. It is digital with a clear, easy-to-read temperature reading. This tool provides readings in both Fahrenheit and Celsius, and the large LCD display provides a quick readout in 20 seconds.
Ear Thermometers: More Comfortable, But Less Precise
Ear (aural) thermometers use infrared technology to detect temperature from the eardrum. They’re easier to use and less invasive, but:
- They require precise positioning for accuracy
- Results can be affected by wax buildup or ear infections
- Not ideal for routine checks during illness
This pet ear thermometer by MindPet Med Store is designed to measure the infrared heat emitted from the area around a pet’s eardrum, providing a non-invasive method to assess body temperature. This thermometer is suitable for various animals and offers a gentle alternative to traditional rectal thermometers.
Forehead/Infrared Devices: A Helpful Backup
Some pet owners turn to infrared forehead thermometers or thermal scanning devices. While they’re non-contact and easy to use, their accuracy can vary widely. These are best used for quick checks and not diagnostic decisions.
The Pet Medics no-contact thermometer is calibrated for dogs and reads temperature from the belly or eye. It uses a color-coded system: green (normal), yellow (monitor), red (too high/low), for quick interpretation. With memory recall and easy handling, it’s perfect for nervous or wiggly pups who don’t tolerate traditional methods.
Are There Any Other Alternatives To A Thermometer In Dogs?
Some microchips provide information to the scanner about a dog’s body temperature as well as their unique chip number. While this is often preferable in nervous dogs or if your dog is well and just having a routine health check, it’s still not as accurate as a rectal reading. This is because, although the microchip lies under the skin, it’s quite close to the surface, so the reading might be falsely low.
Therefore, if your veterinarian suspects that your pet has a fever, they may still choose to use a rectal thermometer, even if your pet has a chip.
How To Tell If A Dog Has A Fever With A Thermometer
If you suspect that your dog could have a fever, it’s best to check their temperature by gently inserting the lubricated thermometer into your dog’s anus. If your dog isn’t amenable to having their temperature taken, or you don’t feel you can do it safely, contact your veterinarian for an appointment.
Most veterinarians agree that if your dog’s temperature is above 102.5°F, then they probably have a fever. According to the AKC, a fever in dogs starts at 103°F or higher, which is your cue to call your vet.
If your dog’s temperature hits 106°F, it becomes a medical emergency. At that point, there’s a real risk of organ damage or even death. So don’t wait; please seek emergency veterinary care.
How To Tell If A Dog Has A Fever Without A Thermometer
If you don’t have a thermometer available, you might suspect your dog has a fever if their ears and nose feel hot or if they generally feel warmer than normal. However, using this method of assessing a fever is very subjective and will depend on how warm (or cold) your hands are.
While nothing beats an actual temperature reading, there are several signs that can tip you off when your pup isn’t feeling well. If you think your dog might have a fever and they feel a little warm, look out for the other signs of a fever and speak to your veterinarian.
Top Signs Your Dog Might Have A Fever
Your dog can’t say “I feel sick”, but their body language speaks volumes. A fever is often your dog’s way of saying something’s off. While some signs overlap with other health issues, the combination of symptoms can help you spot a fever early.
Key signs to watch for:
- Warm, dry nose
- Excessive panting
- Lethargy or low energy
- Irritability
- Red, glassy, or sunken eyes
- Loss of appetite
- Drinking less
- Shivering or trembling
- Increased breath rate
- Nasal discharge or coughing
- Pale or flushed gums
- Licking at sore or inflamed areas
- Other symptoms relating to the underlying illness (vomiting, diarrhea, coughing, sneezing, etc.)
Vet’s Tip: If you notice more than one of these symptoms, and especially if your dog’s behavior seems “off,” take their temperature or call your vet for next steps.
Fevers are rarely random. They’re often a symptom of something deeper. This could be an infection, inflammation, or even poisoning. The sooner you detect the signs, the faster your dog can get help.
When To Worry: Causes & Risks Of Fever In Dogs
A slight temperature rise? Maybe nothing. But certain causes of fever deserve immediate attention. Fever is a symptom, not a diagnosis, and it often means your dog’s immune system is battling something. Some causes are mild and resolve quickly. Others? Not so much.
Common Causes Of Fever In Dogs
From infections to inflammation, here are some of the most common causes behind an elevated temperature:
- Bacterial or viral infections (e.g., kennel cough, UTI, pneumonia)
- Parasites or tick-borne illnesses
- Fungal infections
- Toxins or ingested chemicals
- Inflammatory conditions (e.g., pancreatitis, autoimmune disease)
- Vaccination response (typically short-term)
Long-Term Risks Of Fever In Dogs
If a dog’s fever goes untreated, it can lead to serious health complications. High temperatures can cause organ damage, particularly to the kidneys, liver, and brain. Dehydration is another major concern, as it can set in quickly and further weaken the body’s ability to fight illness.
In severe cases, fever may lead to neurological issues such as disorientation or seizures, or even progress to sepsis, a life-threatening systemic infection. Prompt action is key to preventing these outcomes.
When To Visit The Emergency Vet For A Fever
Sometimes, waiting it out isn’t an option. A high fever can turn dangerous fast. While mild fevers may resolve on their own or with a call to your regular vet, some situations call for immediate emergency care. Knowing when to act can be life-saving.
Call your emergency vet if your dog:
- Has a temperature of 104°F or higher
- Is vomiting or diarrhea
- Appears confused or disoriented
- Is having trouble breathing
- Is shaking uncontrollably or having seizures
- Has a fever that lasts more than 24 hours
- Is a young puppy, senior, or immunocompromised
Vet’s Warning: A fever this high can lead to organ damage or neurological complications in a matter of hours. Don’t wait, seek immediate help.
Even if your dog’s symptoms seem “mild,” trust your instincts. If they’re acting off and you’re worried, you’re never wrong to call your vet. It’s better to overreact than under-respond when it comes to fever.
How Vets Treat Dog Fevers
When your dog has a fever, your vet’s job is to find the “why” and fix it fast.
The first step most vets take is a thorough physical exam, followed by diagnostics like blood tests, urinalysis, or imaging to uncover the root cause. It could be an infection, inflammation, toxin, or something else.
Common treatments may include:
- Antibiotics for bacterial infections
- Anti-inflammatory medications to reduce fever and pain
- IV fluids to combat dehydration and stabilize temperature
- Hospitalization if the fever is high, persistent, or linked to serious symptoms
Medication to help with nausea or improve appetite may also be used, depending on your dog’s symptoms.
Vet’s Tip: Never give your dog over-the-counter human medications like ibuprofen or acetaminophen, as they can be toxic and even fatal.
So, when should you call your vet? The short answer: if your dog’s temperature is above 103°F and they’re not acting like themselves. Even a single symptom (like vomiting, shaking, or loss of appetite) paired with an elevated temperature is enough reason to make the call.
Home Remedies For Dog Fever: What Works & What Doesn’t
Thinking about treating your dog’s fever at home? Be careful. Some methods help, others can do harm. While mild fevers (around 103°F) without severe symptoms may not require a vet visit right away, you should still proceed with caution. Always observe your dog closely and consult your vet if you’re unsure.
What can help at home:
- Cool Water on the Ears and Paws. Dampen a cloth with room-temperature water and gently apply to help lower the body temp.
- Encourage Hydration. Offer fresh, clean water often. Dehydration makes fevers worse.
- Rest and Comfort. Keep your dog in a calm, shaded space away from heat or activity.
- Use a Fan. You can place a fan nearby to increase airflow, but don’t aim it directly at your pup.
What not to do:
- Do Not Give Human Medications. For example, Tylenol (acetaminophen) or Advil (ibuprofen) is toxic to dogs.
- Avoid Cold Baths or Ice Packs. They can cause shivering, which raises the body temperature.
If your dog’s fever doesn’t drop within 24 hours or spikes above 103°F, it’s time to call your vet. Home care can be supportive, but it’s not a substitute for professional treatment when things get serious.
Dog Fever Treatment At Home
If you think your dog has a fever, it’s really important to get them checked by a veterinarian so that the medication they need can be prescribed. Once they’ve been assessed and the medication started, you might need to care for your dog at home while they recover from their illness.
Ensuring they have a cool but comfortable resting spot, providing plenty of water, and keeping food within easy reach will help their recovery. If their temperature becomes very high, or they seem to deteriorate, try cooling them down with a fan and some cool, wet towels while you contact the veterinary clinic.
How To Comfort A Dog With A Fever
Your dog might feel irritable or even act aggressively when they have a fever. This is because, just like humans, fever can cause aches and pains as well as fatigue. It’s best to give your dog some space, but ensure they can reach everything they need. On the flip side, they may follow you everywhere and feel super needy. Do what you can for your pup and what you think is right.
Either way, check on them often and ensure that the room temperature isn’t drifting up. If symptoms worsen or your pup seems unusually withdrawn, don’t wait to check in with your vet.
What Causes A Low Temperature In Dogs?
Fever isn’t the only warning sign; a low body temperature can be just as dangerous. According to the AKC, a dog’s normal temperature shouldn’t dip below 99°F. When it does, it’s called hypothermia, and it’s a red flag that something’s seriously wrong.
Possible causes of low body temperature:
- Exposure to cold weather or water
- Shock from trauma or internal injury
- Anesthesia recovery (common post-surgery)
- Puppies or small breeds that lose body heat quickly
- Severe illness or infection that suppresses body systems
Hypothermia can progress quickly, especially in puppies, seniors, or sick dogs. If your dog feels cold to the touch, is shivering uncontrollably, or appears disoriented, wrap them in warm blankets and call your vet immediately.
How Pet Insurance Can Help
Be sure to consider pet insurance for your dog, which can help cover related unexpected vet bills and expenses due to a dog with a fever, including diagnostic tests, bloodwork, overnight hospitalization, and medication. Having a pet insurance policy in place prior to an unexpected health concern can help cover some of the associated costs, allowing you to focus on your dog’s recovery. Pet insurance can help many families when it comes to emergency fever workup. Our pet insurance experts have reviewed the best pet insurance to help owners find the right option for them and their pups.
Breed-Specific Fever Considerations
Some dogs run warmer, or are more fever-prone, just because of their breed. While the general range for normal dog temperature holds true across most breeds, there are a few notable exceptions where genetics, body composition, and predispositions come into play.
Breeds with unique considerations:
- Greyhounds and other sighthounds naturally have a slightly lower normal body temperature, thanks to their lean, low-body-fat physique.
- Flat-faced breeds, such as Bulldogs and Pugs, are more susceptible to heat-related illness, and their temperatures can climb quickly in warm environments.
- Double-coated or heavy-coated breeds (like Huskies or Bernese Mountain Dogs) may retain more heat and require extra attention in warmer weather.
- Toy breeds and small dogs often have faster metabolisms, which can translate to a slightly higher resting temperature.
Vet’s Reminder: What’s “normal” can vary slightly between dogs, even within the same breed. That’s why it’s helpful to know your individual dog’s baseline when they’re healthy.
If you have a breed with known sensitivities to heat, stress, or illness, talk to your vet about what temperature range is considered safe for your dog.
Normal Dog Temp Takeaway
It is a real worry whenever your dog is sick, and they can be really out of sorts if they have a fever. If you spot the signs of a fever or you get a high reading when you take your dog’s temperature, contact your veterinarian for advice. With the right medication, their temperature should return to a normal temp for dogs, and they’ll soon be their usual happy self!
Take The Lead On Your Dog’s Health With These Simple Steps
Keeping an eye on your dog’s temperature is just one part of a bigger picture when it comes to their health. Regular vet checkups, a balanced diet, and plenty of exercise all play vital roles in keeping your pup happy and thriving. Don’t forget to brush their teeth, monitor their weight, and stay up-to-date on vaccinations. When you take a proactive approach to your dog’s well-being, you’re not just preventing illness. You’re giving them the best shot at a long, healthy life by your side.
Have a story about spotting a fever in your dog or tips for keeping your pup healthy? Share your experience in the comments, we’d love to hear from you!
Why Trust Canine Journal
After earning her degree from the Royal Veterinary College in 2011, Dr. Hannah Godfrey BVetMed MRCVS began her career in a bustling mixed-animal practice. Over time, she discovered a special passion for small companion animals and now works in a dedicated small animal clinic in Wales. There, she blends her veterinary expertise with her love of writing to help pet owners better understand and care for their furry friends. With her hands-on experience in treating fevers and monitoring canine health, Dr. Godfrey brings trusted insight to Canine Journal and their readers.
