When your dog feels warm to the touch or acts a little sluggish, your first instinct might be to worry. Is it a fever? Should you head to the emergency vet? Taking your dog’s temperature at home is one of the most practical skills you can learn as a pet parent. It gives you real data to share with your veterinarian and can help you stay calm in a stressful moment. Let’s walk through exactly how to do it safely and accurately, step by step.

What’s a Normal Dog Temperature, and Why Does It Matter?

A healthy dog’s body temperature typically falls between 101°F and 102.5°F (38.3°C to 39.2°C). That’s higher than our own human range, so a warm ear or nose doesn’t always mean fever. Puppies and very active dogs can run a little higher, especially after exercise. Knowing this baseline is important because it helps you spot when something is off. If your dog’s temperature goes above 103°F (39.4°C), it’s worth monitoring. Above 104°F (40°C), you should call your vet. And if it hits 106°F (41.1°C) or higher, that’s a medical emergency. On the flip side, a temperature below 99°F (37.2°C) can indicate hypothermia, especially in smaller breeds or dogs that have been outside in cold weather. For example, if you own a breed that loves the snow, like a Bernese Mountain Dog, it’s smart to understand their normal range. You can read more about whether Bernese Mountain Dogs shed a lot and how their thick coat affects temperature regulation, but always rely on a thermometer, not just how they feel to the touch.

What You’ll Need Before You Start

Gather your supplies first so you’re not fumbling around while trying to hold your dog still. You’ll need: a digital rectal thermometer (the fastest and most accurate type), a lubricant like petroleum jelly or KY Jelly, a treat or two for distraction, and a towel or blanket for comfort. Avoid glass thermometers, they can break. Digital thermometers give a reading in 10 to 60 seconds, which makes the whole process much less stressful for both of you. If you have a multi-pet household, you might also be curious about how different pets interact. For instance, if you’re wondering about whether Norwegian Forest Cats are good with dogs, that’s a separate topic, but for temperature taking, focus on one pet at a time.

Step-by-Step: How to Take Your Dog’s Temperature Rectally

This is the gold standard method. It sounds intimidating, but with practice it becomes routine. Start by applying a generous amount of lubricant to the tip of the thermometer. This reduces discomfort and makes insertion easier. Position your dog on a non-slip surface, like a rug or yoga mat. If your dog is small, you can hold them on your lap. For larger dogs, have them stand. Gently lift their tail and insert the thermometer about half an inch to one inch into the rectum, angling it slightly toward the side rather than straight in. Hold it in place until it beeps. That’s it. Remove it gently, wipe it clean, and read the display. Reward your dog with a treat and lots of praise immediately. If your dog resists, don’t force it. Take a break and try again later, or ask someone to help hold them still. A calm, confident approach makes all the difference.

Your dog can’t tell you they feel lousy, but a thermometer gives you a clear answer in under a minute. That’s power in your hands as a pet parent.

Alternative Methods: Ear and Armpit Thermometers

Rectal is the most reliable, but there are alternatives. Ear thermometers designed for dogs measure the temperature from the ear canal. They’re quick and less invasive, but they can be less accurate if your dog has an ear infection or if the probe isn’t positioned correctly. Armpit (axillary) thermometers are another option: place the thermometer in your dog’s armpit and hold their leg down for two to three minutes. This method is less stressful but also less precise, and it usually reads about half a degree lower than rectal. If you use these methods, add 0.5°F to the reading for a closer estimate. No matter which method you choose, always clean the thermometer with soap and warm water or rubbing alcohol between uses. If you have a cat and a dog at home, you might also want to check if Siamese cats get along with dogs, but for now, keep your thermometer dedicated to one species to avoid cross-contamination.

Pro Tip

If your dog is panting heavily or has just been exercising, wait 15 to 20 minutes before taking their temperature. Exercise can temporarily raise body heat and give you a false high reading. A calm, resting dog gives you the most accurate baseline.

When to Call the Vet: Reading the Signs Together

A single temperature reading is just one piece of the puzzle. Always consider how your dog is acting overall. Is your dog eating and drinking normally? Are they playful or lethargic? Do they have vomiting, diarrhea, or coughing? A fever combined with other symptoms is a stronger reason to call your vet. If your dog’s temperature is above 103°F and they seem uncomfortable, offer fresh water and a cool place to rest, but never give human fever reducers like ibuprofen or acetaminophen. Those are toxic to dogs. If the temperature is above 104°F, contact your vet immediately. If it’s below 99°F, warm your dog with blankets and a gentle heat source (like a warm water bottle wrapped in a towel) and call your vet. For breeds prone to joint issues, temperature changes can sometimes accompany other problems. For example, you can learn more about signs of hip dysplasia in Bernese Mountain Dogs to see if your dog’s discomfort might be related to something other than fever. Always trust your gut, if something feels wrong, a vet visit is never a waste.

Frequently Asked Questions About Taking Your Dog’s Temperature

Here are some common questions pet parents ask, answered simply and directly.