Here. Guys from Acclaim and Charybdis tried to implement this, as you might see here, but for some reason, they didn't. Who knows why? Maybe it's because of their low budget or very little time?
That doesn't matter now, anyway, because I think we've got to implement weathers to OpenMachines.
Furthermore, I think we should allow the player to detect and maybe even alter current weather during the gameplay? So Technicians won't be useless after you research everything in all the labs.