Thanks for all the responses. I ran an experiment today and flew 4 consecutive flights without restarting the sim. (it was a long day of flying, lol)
- KDTW to KJFK then back to KDTW
- then -
- KDTW to KRDU then back to KDTW
When I started this morning, the weather in Detroit was heavy rain and overcast. After my first return to Detroit, the rain had stopped and visibility improved quite a bit. After my final flight, the clouds had thinned and the sun started to show itself.
At least for me, it seemed to be dynamic and real-time. I live an hour from KDTW and can confirm that the weather seemed fairly accurate (at least for where I live). I don’t remember it being that way in the past, but I’ve never done a long-tern test like I did today.