Because of the randomness of troll results at times, it probably takes a full season or more of results sharing to identify a more consistent pattern of how the weather conditions could affect match results by trialling different passing variation, pressing type and/or marking type.
Theoretically rainy weather makes control harder and short passing harder, so long passing should make sense? It is still a puzzle for me on what to do with cold weather (tense player feeling chilly? Does that mean players couldn’t accelerate as quickly and so should use short passing more!?).
As most have probably experienced, the most obvious is the extra 10-15% drop in conditions under hot weather and even worse when using high pressing. In hot weather, switching to a defensive setup with low pressing to score via counter, plus earlier 60-min subs, may be the way forward in saving conditions when facing weak opponents.