(KTVI) - Keep the umbrellas handy St. Louis. The rain that moved in Tuesday morning is going to be around for the next few days. Rain and storms will cross Missouri and Illinois in several waves as a large western storm makes slow progress east.
Temperatures will be cool on Tuesday, but south winds will boost highs to near 70° on Wednesday and Thursday.
The rain will last into Halloween, but there are signs it may move out before Trick-or-Treating Thursday night.