How to Take Dog Temperature at Home

Why You Should Know How to Take Your Dog's Temperature

A thermometer is one of the most useful tools a dog owner can have. Fever is one of the earliest signs of infection, illness, or inflammation — and knowing how to check it at home means you can act faster and give your vet accurate information when you call.

What You'll Need

A digital rectal thermometer (pet-specific or human digital thermometer)
Petroleum jelly or water-based lubricant
A helper to hold your dog still (recommended)
Treats for afterward

🌡️ Recommended Tool: iProven Dog & Cat Thermometer DTK-117Y — Flexible tip for comfort, waterproof, reads in 20 seconds. Designed specifically for pets.

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

Calm your dog. Have your dog stand or lie on their side. A helper holding the dog gently makes this much easier.
Lubricate the thermometer tip. Apply a small amount of petroleum jelly or water-based lubricant to the tip.
Lift the tail gently. Raise your dog's tail and insert the thermometer about 1 inch into the rectum. Never force it.
Wait for the beep. Most digital thermometers beep when done — usually within 20–60 seconds.
Remove and read. Gently remove the thermometer and note the reading.
Reward your dog. Give a treat immediately to create a positive association.
Clean the thermometer. Wipe with alcohol or wash with soap and water.

Can You Take a Dog's Temperature Without a Rectal Thermometer?

Ear thermometers exist for dogs, but they are significantly less accurate than rectal thermometers and not recommended for detecting fever. Forehead or touch thermometers designed for humans do not work on dogs. For an accurate reading, rectal is the gold standard.

What Is a Normal Dog Temperature?

Normal dog temperature is 101–102.5°F (38.3–39.2°C). See our full guide on normal dog temperature range for a complete breakdown by age and size.

Below 99°F (37.2°C): Hypothermia — seek emergency care
99–100°F: Slightly low — monitor closely
101–102.5°F: Normal range
103°F (39.4°C): Low-grade fever — monitor and call vet
104°F+ (40°C+): High fever — vet visit needed
106°F+ (41.1°C+): Emergency — go immediately

Tips for Success

Practice handling your dog's rear end regularly so they're used to it before they're sick
Always use a dedicated pet thermometer — don't share with humans
Take the temperature when your dog is calm, not after exercise
Take two readings if you're unsure — wait a few minutes between attempts

When to Call the Vet

Call your vet if your dog's temperature is above 103°F or below 99°F, especially if combined with other symptoms like lethargy, vomiting, or loss of appetite. See our guide on how to tell if your dog is sick for a full symptom checklist.

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