A few showers are in the area now.
There are a few more in south-central Illinois as a weak cold front approaches.
I would not rule out rumbles of thunder & lightning as a few more showers develop in our area over the next few hours. Best potential for thunder & lightning is over Montgomery & southern Clinton counties.
The main area of heavy rainfall & t'storms with severe weather is south of our area, however.
Once these exit after 3 a.m., patchy fog may develop. Areas that have moisture on roadways & drop to 32 could see patchy black ice.
Tuesday will be windy with highs 47-54 with variable clouds & a couple of isolated showers as a cold front passes.
Next good potential of widespread is Sunday night-Monday. Anything prior to that would tend to be brief & isolated to spotty.
Friday looks like the coldest day. Periods of strong winds will occur Tuesday-Monday.
Only potential of snowflakes is late Tuesday night to early Wednesday morning & again Friday morning.