We’ve had some pretty nice weather these past few days, and while the warm weather will continue the chance for rain and thunderstorms will be on the increase. Light showers west of the Mississippi River in northeast Iowa will continue to weaken, but may hold together long enough to bring a light shower or two over northwest Illinois Wednesday evening. Otherwise, skies are expected to remain partly to mostly cloudy overnight.
Thunderstorms will develop overnight from Iowa to Minnesota, moving east into Wisconsin through sunrise Thursday. The early hours of Thursday will most likely remain dry, but thunderstorms will slowly sink south through mid to late morning. The heaviest rainfall may stay focused more to our north, but a few heavier downpours are possible through mid-morning. After that, skies will turn partly sunny with an isolated shower/storm chance through the afternoon.
Widespread heavy rainfall is not expected, but there could be some rainfall totals nearly half an inch to three quarters of an inch by Thursday afternoon. The highest rainfall totals will likely occur to our northwest, stretching from southwest Wisconsin into northeast Iowa.