Have you configured it for your area. I live in Burntwood Staffordshire, and entered Burntwood GBR into its search. It is bang on all the time. It show as a dark icon until daylight, then shows yellow.I have windows 7 and my stupid weather icon say's it's sunny outside but is actually raining and it also is saying 83 Degrees Celsius but it is actually 23 Degrees Celsius
I'am not happy with it.
Yes It is set to Tamworth (West) NSW in Australia and I Live At Tamworth (North) NSW in Australia which is 10 Minutes away. as West Tamworth NSW Australia is the only setting. but it shouldn't change as the weather is the same.
Maybe it was measuring the inside of your oven? 83C is about 181 Fahrenheit...Could be some sort of problem with whatever sensor is generating the temps I suppose.