SEVERE THUNDERSTORM WATCH 563 REMAINS VALID UNTIL 2 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN WISCONSIN THIS WATCH INCLUDES 9 COUNTIES IN SOUTH CENTRAL WISCONSIN DANE GREEN ROCK IN SOUTHEAST WISCONSIN JEFFERSON KENOSHA MILWAUKEE RACINE WALWORTH WAUKESHA THIS INCLUDES THE CITIES OF BELOIT, BRODHEAD, BROOKFIELD, DELAVAN, EAST TROY, ELKHORN, FORT ATKINSON, JANESVILLE, JEFFERSON, KENOSHA, LAKE GENEVA, MADISON, MENOMONEE FALLS, MILWAUKEE, MONROE, MUSKEGO, NEW BERLIN, RACINE, WATERTOWN, WAUKESHA, AND WHITEWATER.
Weather in Sun Prairie, WI
Updated 2026-08-11 12:45 local time · ZIP codes 53590

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THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 563 IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN WISCONSIN THIS WATCH INCLUDES 12 COUNTIES IN SOUTH CENTRAL WISCONSIN DANE GREEN IOWA LAFAYETTE ROCK SAUK IN SOUTHEAST WISCONSIN JEFFERSON KENOSHA MILWAUKEE RACINE WALWORTH WAUKESHA THIS INCLUDES THE CITIES OF ARGYLE, BARABOO, BARNEVELD, BELMONT, BELOIT, BENTON, BLANCHARDVILLE, BRODHEAD, BROOKFIELD, DARLINGTON, DELAVAN, DODGEVILLE, EAST TROY, ELKHORN, FORT ATKINSON, JANESVILLE, JEFFERSON, KENOSHA, LAKE GENEVA, MADISON, MENOMONEE FALLS, MILWAUKEE, MINERAL POINT, MONROE, MUSKEGO, NEW BERLIN, PRAIRIE DU SAC, RACINE, REEDSBURG, SAUK CITY, SHULLSBURG, WATERTOWN, WAUKESHA, AND WHITEWATER.
Next hours
75°62% rain
83°10% rain
83°8% rain
83°7% rain
82°6% rain
81°7% rain
78°9% rain
75°11% rain
74°13% rain
73°14% rain
72°14% rain
70°17% rain3-day weather forecast



Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance reaches about 17% over the next 12 hours.
It feels like 79°F with winds near 5 mph.
81°F, 7% rain chance and 4 mph wind.
Visibility is around 10 mi; gusts may reach 12 mph.
Current temperature is 75°F, wind 5 mph, rain chance up to 17%.
UV index is 6. Sunscreen and sunglasses are sensible for longer outdoor time.
Sun Prairie weather today
Cloudy and 75°F in Sun Prairie, WI. Today's high is 83°F with a 78% rain chance. Winds are around 5 mph with gusts near 8 mph. Relative humidity is 89%, pressure is 29.92 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Sun Prairie
Sunrise is at 05:58 AM and sunset is at 08:05 PM. Tomorrow's forecast calls for Sunny with a high near 83°F and a low near 67°F. The maximum rain chance is 72%.