County Forecast for Watseka , IL
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210915-
Iroquois-
Including the cities of Watseka and Gilman
828 PM CDT Sat Jun 20 2026

Rest of tonight   Partly cloudy early in the evening, then becoming mostly cloudy. Lows in the upper 50s. West winds around 5 mph, becoming southeast after midnight.
Sunday   Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Locally heavy rainfall possible in the afternoon. Breezy with highs in the mid 70s. Temperature falling into the mid 60s in the afternoon. Southeast winds 5 to 10 mph, increasing to east 10 to 15 mph with gusts up to 30 mph in the afternoon. Chance of precipitation near 100 percent.
Sunday night   A chance of thunderstorms in the evening. Showers. Lows in the upper 50s. East winds 10 to 15 mph with gusts up to 25 mph, becoming northeast after midnight. Chance of precipitation 90 percent.
Monday   Mostly cloudy. A slight chance of showers in the morning. Highs in the mid 70s. North winds 10 to 15 mph. Chance of precipitation 20 percent.
Monday night   Mostly clear. Lows in the lower 50s. North winds 5 to 10 mph.
Tuesday   Mostly sunny. Highs in the upper 70s.
Tuesday night   Mostly clear. Lows in the mid 50s.
Wednesday   Partly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 50 percent.
Wednesday night   Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 50s.
Thursday   Partly cloudy. Highs in the upper 70s.
Thursday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
Friday   Partly cloudy. Highs in the upper 70s.
Friday night   Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy after midnight. Lows in the upper 50s. Chance of precipitation 30 percent.
Saturday   Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers. Highs in the lower 80s. Chance of precipitation 30 percent.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Tropical Remnants, Fronts, and Another System Producing Rain Through the Weekend
Posted at 12:03PM Thu Jun 18, 2026 CDT
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