County Forecast for Watseka , IL
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310100-
Iroquois-
Including the cities of Watseka and Gilman
1231 PM CDT Sun Aug 30 2026

This afternoon   Mostly cloudy. Isolated showers. A slight chance of thunderstorms early in the afternoon. Highs in the mid 80s. South winds 10 to 15 mph. Chance of precipitation 20 percent.
Tonight   Mostly cloudy. A slight chance of thunderstorms with isolated showers early in the evening. Lows around 70. South winds 5 to 10 mph. Chance of precipitation 20 percent.
Monday   Partly cloudy. Humid with highs around 90. Southwest winds 5 to 10 mph.
Monday night   Partly cloudy. Lows in the lower 70s. Southwest winds 5 to 10 mph.
Tuesday   Mostly sunny. Hot, humid with highs in the lower 90s. Southwest winds around 5 mph. Heat index values up to 103.
Tuesday night   Mostly clear. Lows in the mid 70s.
Wednesday   Mostly sunny. Hot with highs in the mid 90s.
Wednesday night   Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of precipitation 20 percent.
Thursday   Mostly sunny in the morning, then becoming partly cloudy. Hot with highs in the lower 90s.
Thursday night   Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 70s.
Friday   Partly cloudy. Highs around 90.
Friday night   Partly cloudy. Lows in the upper 60s.
Saturday   Partly cloudy. A chance of showers in the morning. Highs in the upper 80s. Chance of precipitation 40 percent.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Storm Moving Across North This Weekend First of Many
Posted at 12:16PM Fri Aug 28, 2026 CDT
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