County Forecast for Watseka , IL
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061200-
Iroquois-
Including the cities of Watseka and Gilman
406 PM CDT Sat Sep 5 2026

..heat advisory in effect until 7 pm cdt this evening   
Late this afternoon   Partly cloudy. Temperatures in the upper 80s. North winds 10 to 15 mph. Heat index values up to 104.
Tonight   Partly cloudy. Humid. Lows in the mid 60s. Northeast winds 10 to 15 mph, diminishing to around 5 mph after midnight.
Sunday   Mostly sunny. Highs in the lower 80s. Northeast winds 5 to 10 mph.
Sunday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.
Labor day   Mostly sunny. Highs in the lower 80s. East winds around 5 mph.
Monday night   Mostly clear in the evening, then becoming partly cloudy. Lows around 60. East winds around 5 mph.
Tuesday   Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 80s.
Tuesday night   Mostly clear in the evening, then becoming partly cloudy. Lows around 70.
Wednesday   Partly cloudy. Highs in the lower 90s.
Wednesday night   Partly cloudy. A chance of showers after midnight. Lows in the mid 60s. Chance of precipitation 30 percent.
Thursday   Mostly cloudy. Highs in the lower 80s.
Thursday night   Partly cloudy. Lows in the upper 50s.
Friday   Mostly sunny in the morning, then becoming partly cloudy. Highs in the lower 80s.
Friday night   Mostly clear in the evening, then becoming partly cloudy. Lows around 60.
Saturday   Mostly sunny. Highs in the mid 80s.
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Bryce Anderson – DTN Meteorologist
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Hot and Dry for Central US Labor Day Weekend

Hot, humid conditions persist through the holiday weekend with scattered showers and thunderstorms likely. » More DTN Weather Commentary
Posted at 11:59AM Fri Sep 4, 2026 CDT
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