The normal temperature for sheep is 101-104 fahrenheit. However, you need to take into account any unusual physical activity, such as running away, that might have affected the sheep as well as the thickness of the coat and weather that day.
The temperature, in any case, should not be the only indicator used to determine a sheep's health. Pulse and heart rate are important too. However, where, taking all this into consideration, a sheep's temperature is above this given norm, it could and usually is a sign of sickness or distress.
A normal body temperature for a sheep ranges around 102.3 degrees Fahrenheit. However, if a sheep’s temperature is between 100.9 degrees and 103.8 degrees Fahrenheit, it is considered to be normal. Any higher than this, and the sheep starts to pant. It’s like a human’s temperature - we get hotter when we exercise because we are moving more, so we start to pant to bring in more oxygen so that our cooling systems will be more efficient.
The sheep does the same thing, except it’s not only cooling that speeds up. Any sheep tender should be worried when a sheep’s temperature exceeds 103.8 degrees because their metabolism will speed up. This could cause the sheep to lose weight and become underweight.