From Meteorologist David Stradling:
Stormy Start to the Work Week:
Much of the morning will be dry on Monday, but showers and thunderstorms will begin to pop up late morning, around 10-11 a.m. and continue into the afternoon. The best chance for those storms will be along and south of I-90. Highs Monday will range from the mid 60s to mid 70s.
Showers and storms will become a little more widespread throughout the day Tuesday. Highs will once again range from the mid 60s to the mid 70s. Wednesday looks to be drier, but an isolated shower or storm near the Black Hills will be possible once again. Warmer air moves in as many will be in the 70s.
Thursday looks to be dry with highs back in the 70s with partly cloudy skies. An isolated storm could return to the area for Friday. As for the weekend, showers are possible Saturday and Sunday is looking pretty dry.