>>1971120Cumulonimbus mean big rain (depending on where you are thinder as well). Taller clouds/cumulus mean youre in a cold front. High up wispy clouds mean a warm front is approaching or a front has just passed if theres sparse wisps of cloud.
If you know where you are and where the wind is coming from that should tell you something to. Wind thats travelef over lots of land, particularily if its crossed high land, is unlikely to produce rain, air coming from the sea is more likely to rain.
