County Forecast for Watseka , IL
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180100-
Iroquois-
Including the cities of Watseka and Gilman
506 AM CDT Fri Jul 17 2026

Today   Mostly cloudy. Patchy smoke until late afternoon. A slight chance of thunderstorms early in the morning. Scattered showers. Scattered thunderstorms in the late morning and afternoon. Highs in the upper 80s. Southwest winds around 5 mph. Chance of precipitation 50 percent.
Tonight   Mostly cloudy in the evening, then becoming partly cloudy. Scattered showers and thunderstorms early in the evening, then isolated thunderstorms late in the evening. A slight chance of showers in the late evening and early morning. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of precipitation 30 percent.
Saturday   Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers early in the afternoon. A chance of thunderstorms in the afternoon. Showers likely late. Humid with highs around 90. West winds 5 to 10 mph. Chance of precipitation 70 percent. Heat index values up to 103.
Saturday night   Partly cloudy in the evening, then becoming mostly clear. A chance of showers and thunderstorms in the evening. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 30 percent.
Sunday   Sunny. Highs in the mid 80s. Northeast winds around 5 mph.
Sunday night   Mostly clear. Lows in the lower 60s.
Monday   Partly cloudy. Highs in the upper 80s.
Monday night   Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of precipitation 50 percent.
Tuesday   Partly cloudy. Highs in the mid 80s.
Tuesday night   Mostly clear. Lows in the lower 60s.
Wednesday   Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s.
Wednesday night   Mostly clear. Lows in the upper 50s.
Thursday   Mostly sunny in the morning, then becoming partly cloudy. Highs around 80.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Continued Smoke, Increasing Showers Across Midwest Friday
Posted at 5:35AM Fri Jul 17, 2026 CDT
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