County Forecast for Watseka , IL
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160200-
Iroquois-
Including the cities of Watseka and Gilman
111 PM CDT Wed Jul 15 2026

This afternoon   Mostly sunny. Near steady temperature in the lower 90s. West winds around 5 mph. Heat index values up to 100.
Tonight   Partly cloudy. Humid with lows in the lower 70s. Southwest winds around 5 mph.
Thursday   Partly cloudy. Patchy smoke in the late morning and afternoon. A slight chance of showers and thunderstorms in the afternoon. Humid with highs around 90. West winds around 5 mph, becoming southwest in the afternoon. Chance of precipitation 20 percent.
Thursday night   Partly cloudy. A slight chance of thunderstorms in the evening. A slight chance of showers. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of precipitation 20 percent.
Friday   Mostly cloudy. Showers with a chance of thunderstorms. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of precipitation 80 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   Mostly sunny in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of precipitation 40 percent.
Saturday night   Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 60s. Chance of precipitation 50 percent.
Sunday   Mostly sunny. Highs in the mid 80s.
Sunday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s.
Monday   Partly cloudy. Highs in the upper 80s.
Monday night   Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 60s. Chance of precipitation 40 percent.
Tuesday   Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 80s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Heat Continues, But Showers Spreading North Thursday
Posted at 11:59AM Wed Jul 15, 2026 CDT
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