We hit 77° on Tuesday afternoon. That is good for 13° above average. Hopefully you were able to enjoy it because we won't see upper 70's until potentially early next week. That's because a strong fall cold front will move through on Wednesday morning, ushering in much colder air. Before it moves through, though, we will see some rain and potentially a few rumbles of thunder Wednesday morning into the afternoon. The rain won't be particularly heavy, nor is severe weather expected in our region. There is a minimal threat, however, of severe thunderstorms to our south near Springfield and Peoria. Rain totals locally will approach the one-half inch mark in many locations, but this particular model shown may be overdoing things just a bit in the rainfall department.
Behind the rain, skies clear into Wednesday evening. Those clear skies, combined with an incoming area of high pressure, will supply ideal conditions for temperatures to fall far. By Thursday morning, temperatures will be in the middle and upper 30's. That will be cold enough to support some frost. Some of the forecast models even point towards overnight lows in the lower 30's! Thursday night we will likely fall right back down into the middle 30's in many locations, which again will support some areas of frost. So it's time to cover up the tender vegetation!