If you're playing atm 9 (or between 7 and 9), occultism and evilcraft have methods of controlling the weather. A place for discussing, feeding back on or trying desperately to unravel weather factory's games: The vast amount of weather data they collect only becomes meaningful when combined with the scientific expertise that their team of meteorologists provide.
Radar loop shows deadly storm tracking across Tennessee
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). ☽★☾ cultist simulator and book of hours ☽★☾ Features the world's most accurate weather service, pinpointed to any microclimate.
Occultism has dry, rainy, thunderstorm and even time so day or night.
They really don't have as much data to get their version of. This includes but is not limited to: Quick question, after you use the env variable command, does weather still rotate randomly after x amount of time passes using the command 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.