Rain is expected to move in from the south overnight Monday and last all the way through Wednesday morning. As you watch the Supercast note the blue which indicates snow in northwest Kansas and Nebraska as cold air filters in from the north. The rain should move out just in time Wednesday where winter precipitation would not occur in northeast Kansas. However a snowflake or two would not be out of the question in north-central Kansas Tuesday night/Wednesday morning if cold air moves in quicker than expected. Rain with imbedded thunderstorms may be heavy at times with latest indications hinting of at least 1" throughout all of northeast KS.
By Wednesday Supercast is showing the rain already into Missouri but other computer models keep the some light rain for the morning hours with decreasing clouds in the afternoon. Cold air will continue to filter into the area on Wednesday keeping highs in most spots from reaching 50°.
**Note the forecasted rainfall totals in the image are through 6pm Tuesday but rain will continue through Wednesday morning adding to the totals for some of the cities.