Chilly Night Across Southern Wisconsin

• Active Pattern Ahead
• Heavy Rainfall Possible
• Below Normal Temperatures

MADISON, Wis. (WMTV) – Southern Wisconsin will continue to experience cooler-than-normal temperatures through the middle of the week. Some isolated areas, particularly along the Kettle Moraine and in central to east-central parts of the state, may see frost overnight. Rain chances return Monday night into Tuesday, with widespread precipitation (50–90% chance) and a possibility of thunderstorms. As the week progresses, temperatures are expected to gradually return to seasonal norms by late week and into the weekend.

What’s Coming Up…

A high-pressure system over Hudson Bay will strengthen and extend southward into Monday, while a developing low-pressure system moves in from the west. This will lead to breezy easterly winds, increasing especially Monday night. Low-level moisture will contribute to cloud cover, but precipitation is expected to hold off until late Monday night due to dry air in the mid-levels and delayed upper-level forcing. Rain will likely arrive by early Tuesday as atmospheric conditions become more favorable.

Looking Ahead…

From Tuesday through early Wednesday, a combination of deep moisture and strong upper-level forcing will bring widespread rainfall, especially in southwestern Wisconsin, where totals could reach 2 inches. Northern areas may see closer to 0.75 inches. While thunderstorms are possible in the far south, limited instability reduces the likelihood of severe storms. Drier conditions will return by Wednesday evening as the system weakens. The rest of the week into the weekend is expected to remain mostly dry under the influence of high pressure, although a few isolated showers or storms may still develop, particularly by Saturday.

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