Weather underground has, by far, the best data and accuracy, in part because it has a network of tens of thousands of personal weather stations (pws). This includes but is not limited to: The vast amount of weather data they collect only becomes meaningful when combined with the scientific expertise that their team of meteorologists provide.
Knoxville Weather Radar East Tennessee
Occultism has dry, rainy, thunderstorm and even time so day or night. Features the world's most accurate weather service, pinpointed to any microclimate. They really don't have as much data to get their version of.
If you're playing atm 9 (or between 7 and 9), occultism and evilcraft have methods of controlling the weather.
The hourly weather forecast graphs out temp/dewpoint, wind, rain/snow, etc., which is really handy if you wanna get a quick idea of what to expect at a given time. Quick question, after you use the env variable command, does weather still rotate randomly after x amount of time passes using the command weather?