Wisconsin–Illinois Weather Alert: 33–50% Above-Normal Temps with Rain/Sleet Risk Feb. 21–27

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Milwaukee, Wisconsin – A milder late-winter pattern is setting up across Wisconsin and northern Illinois in the Feb. 21–27 window, increasing the likelihood of above-normal temperatures and shifting precipitation toward rain or sleet instead of widespread snow.

According to the National Weather Service Climate Prediction Center, much of Wisconsin and Illinois falls within a 33% to 50% probability zone for above-normal temperatures during the 8- to 14-day outlook. That points to afternoon highs running several degrees above late-February averages, especially across southern Wisconsin and the Chicago metro.

While the warmer trend reduces the risk for prolonged snow events, passing systems could still bring mixed precipitation. In northern Wisconsin, including Wausau and Rhinelander, colder air may support periods of snow or sleet if it lingers behind a system. Farther south, from Milwaukee to Chicago and Rockford, rain appears more likely during the day, with sleet possible overnight if surface temperatures dip near freezing.

Drivers should stay alert for slick bridges and elevated ramps along I-94, I-43 and I-90 during early morning hours when refreezing can occur.

The broader setup favors active weather rather than a prolonged dry stretch. Additional updates from the National Weather Service may refine precipitation type and timing as late February approaches.