County Forecast for Watseka , IL
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040200-
Iroquois-
Including the cities of Watseka and Gilman
120 PM CDT Mon Aug 3 2026

This afternoon   Mostly sunny. Near steady temperature in the lower 80s. Light and variable winds.
Tonight   Clear. Patchy fog after midnight. Lows in the lower 60s. Light and variable winds.
Tuesday   Mostly sunny. Patchy fog early in the morning. Highs in the lower 80s. South winds around 5 mph.
Tuesday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. South winds around 5 mph.
Wednesday   Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. South winds around 5 mph. Chance of precipitation 40 percent.
Wednesday night   A chance of thunderstorms. Showers. Lows in the upper 60s. Chance of precipitation 80 percent.
Thursday   Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 70 percent.
Thursday night   Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 60s. Chance of precipitation 20 percent.
Friday   Mostly cloudy in the morning, then becoming partly cloudy. Highs in the lower 80s.
Friday night   Partly cloudy. Lows in the lower 60s.
Saturday   Partly cloudy. Highs in the lower 80s.
Saturday night   Mostly clear. Lows in the mid 60s.
Sunday   Partly cloudy. Highs in the mid 80s.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Strong Storms Target the Eastern Dakotas and Northwest Minnesota Tonight

Strong to severe storms possible Monday evening across the eastern Dakotas, with hail and wind risks. » More DTN Weather Commentary

Posted at 12:40PM Mon Aug 3, 2026 CDT
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