Isolated thunderstorms have developed over parts of Wisconsin and northeast Illinois Tuesday evening. Severe weather is not expected, but a thunderstorm moving across McHenry County in northeast Illinois is capable of heavy downpours and gusty winds. This storm is moving to the southeast towards the northwest suburbs and Chicago.
A few additional thunderstorms over southwest Wisconsin will move southeast into Jo Daviess and Stephenson counties. These storms are weakening, but will still be capable of heavy downpours.
Most of the storm activity will last through sunset with isolated showers and mostly cloudy skies heading into Wednesday morning. An approaching low pressure system from the north will help aide in a few additional showers for Wednesday afternoon and evening. Severe weather is not expected with those storms.