County Forecast for Watseka , IL
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151300-
Iroquois-
Including the cities of Watseka and Gilman
555 PM CDT Tue Jul 14 2026

Late this afternoon   Sunny. Temperatures in the lower 90s. South winds around 5 mph. Heat index values up to 100.
Tonight   Clear, humid. Lows around 70. Southwest winds around 5 mph.
Wednesday   Mostly sunny in the morning, then becoming partly cloudy. Humid with highs in the lower 90s. West winds around 5 mph. Heat index values up to 101.
Wednesday night   Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 70s. West winds around 5 mph.
Thursday   Partly cloudy. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. West winds around 5 mph. Chance of precipitation 30 percent. Heat index values up to 101.
Thursday night   Mostly cloudy in the evening, then becoming partly cloudy. Humid with lows in the lower 70s. West winds around 5 mph in the evening, becoming light and variable.
Friday   Partly cloudy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the upper 80s. Chance of precipitation 70 percent.
Friday night   Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 70s. Chance of precipitation 20 percent.
Saturday   Partly cloudy. Highs around 90.
Saturday night   Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows around 70. Chance of precipitation 30 percent.
Sunday   Partly cloudy. Highs in the upper 80s.
Sunday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s.
Monday   Partly cloudy. Highs in the upper 80s.
Monday night   Partly cloudy. A chance of showers in the evening. Lows in the upper 60s. Chance of precipitation 30 percent.
Tuesday   Partly cloudy. Highs in the mid 80s.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Northern Heat, Southern Storms Continue Wednesday
Posted at 12:00PM Tue Jul 14, 2026 CDT
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