County Forecast for Watseka , IL
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091400-
Iroquois-
Including the cities of Watseka and Gilman
120 AM CDT Sun Aug 9 2026

Rest of tonight   Partly cloudy. Patchy fog. Near steady temperature in the mid 60s. South winds around 5 mph.
Sunday   Partly cloudy. Patchy fog early in the morning. A chance of showers and thunderstorms in the afternoon. More humid with highs in the upper 80s. South winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Chance of precipitation 50 percent.
Sunday night   Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Humid with lows in the lower 70s. South winds 5 to 10 mph. Chance of precipitation 70 percent.
Monday   Mostly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of precipitation 40 percent. Heat index values up to 100.
Monday night   Showers likely with a chance of thunderstorms. Humid with lows around 70. South winds around 5 mph. Chance of precipitation 70 percent.
Tuesday   Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 50 percent.
Tuesday night   Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 60s. Chance of precipitation 70 percent.
Wednesday   Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 50 percent.
Wednesday night   Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Chance of precipitation 50 percent.
Thursday   Mostly cloudy. A chance of showers in the afternoon. Highs in the upper 70s. Chance of precipitation 40 percent.
Thursday night   A chance of showers in the evening. Mostly cloudy. Lows in the lower 60s. Chance of precipitation 40 percent.
Friday   Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 70s.
Friday night   Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of precipitation 40 percent.
Saturday   Mostly cloudy with a chance of showers. Highs in the upper 70s. Chance of precipitation 50 percent.
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Bryce Anderson – DTN Meteorologist
Damaging Storms Possible in the Upper Midwest This Afternoon

Scattered showers, storms for the Upper Midwest. Heavier rain Friday night into Saturday morning for portions of the Delta. » More DTN Weather Commentary

Posted at 12:27PM Fri Aug 7, 2026 CDT
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