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	County Forecast for Watseka , IL

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152200-
Iroquois-
Including the cities of Watseka and Gilman
906 AM CDT Tue Sep 15 2026

Rest of today   Partly cloudy. Isolated showers and thunderstorms early in the afternoon. Scattered showers and thunderstorms late. Highs around 90. Southwest winds 10 to 15 mph, diminishing to 5 to 10 mph in the afternoon. Chance of precipitation 40 percent.
Tonight   A chance of thunderstorms early in the evening. Showers likely. A slight chance of thunderstorms in the late evening and overnight. Humid with lows in the mid 60s. Northwest winds 5 to 10 mph, becoming northeast after midnight. Chance of precipitation 70 percent.
Wednesday   Mostly cloudy. Showers likely in the morning. A slight chance of thunderstorms. A chance of showers in the afternoon. Humid with highs in the lower 80s. Northeast winds around 5 mph. Chance of precipitation 60 percent.
Wednesday night   Mostly cloudy. A slight chance of thunderstorms in the evening. A chance of showers. A chance of thunderstorms after midnight. Humid with lows in the upper 60s. East winds around 5 mph, becoming southeast after midnight. Chance of precipitation 50 percent.
Thursday   Mostly cloudy. A chance of showers in the morning. A slight chance of thunderstorms. A slight chance of showers in the afternoon. Humid with highs in the mid 80s. West winds around 5 mph. Chance of precipitation 50 percent.
Thursday night   Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of precipitation 30 percent.
Friday   Mostly cloudy in the morning, then becoming partly cloudy. A slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the lower 80s. Chance of precipitation 40 percent.
Friday night   Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 60s. Chance of precipitation 20 percent.
Saturday   Partly cloudy. Highs in the upper 80s.
Saturday night   Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of precipitation 60 percent.
Sunday   Mostly cloudy with a chance of showers. Highs in the upper 70s. Chance of precipitation 50 percent.
Sunday night   A chance of showers in the evening. Mostly cloudy. Lows in the upper 50s. Chance of precipitation 30 percent.
Monday   Partly cloudy. Highs in the mid 70s.

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Bryce Anderson – DTN Meteorologist

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Showers Stretch from Texas to Michigan Tuesday

Scattered showers, storms across the Upper Midwest, Texas Panhandle. Heavy rain possible for Iowa, Missouri, Illinois. » More DTN Weather Commentary

Posted at 5:33AM Tue Sep 15, 2026 CDT

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