County Forecast for Watseka , IL
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210100-
Iroquois-
Including the cities of Watseka and Gilman
521 AM CDT Mon Jul 20 2026

Today   Partly cloudy. Patchy fog early in the morning. Smoke in the morning. Highs in the mid 80s. South winds 5 to 10 mph.
Tonight   Mostly cloudy. Scattered showers and thunderstorms after midnight. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of precipitation 50 percent.
Tuesday   Partly cloudy in the morning, then clearing. Isolated showers and thunderstorms early in the morning. Humid with highs in the mid 80s. West winds 5 to 10 mph, increasing to northwest 10 to 15 mph in the afternoon. Chance of precipitation 20 percent.
Tuesday night   Mostly clear. Lows in the lower 60s. North winds 5 to 10 mph.
Wednesday   Mostly sunny. Highs in the mid 70s. North winds 5 to 10 mph.
Wednesday night   Clear. Lows in the mid 50s.
Thursday   Mostly sunny. Highs in the mid 70s.
Thursday night   Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s.
Friday   Partly cloudy. Highs around 80.
Friday night   Mostly clear. Lows around 60.
Saturday   Mostly sunny. Highs in the mid 80s.
Saturday night   Mostly clear. Lows in the mid 60s.
Sunday   Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 80s.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Strong Cold Front Pushing Into Corn Belt Monday
Posted at 5:39AM Mon Jul 20, 2026 CDT
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