County Forecast for Watseka , IL
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191000-
Iroquois-
Including the cities of Watseka and Gilman
912 PM CDT Sat Jul 18 2026

Rest of tonight   Partly cloudy. Patchy smoke late in the evening. Areas of smoke after midnight. Lows in the mid 60s. Northeast winds around 5 mph.
Sunday   Partly cloudy in the morning, then clearing. Areas of smoke early in the morning, then patchy smoke late in the morning. Areas of smoke in the afternoon. Highs in the lower 80s. Northeast winds around 5 mph.
Sunday night   Mostly clear in the evening, then becoming partly cloudy. Areas of smoke early in the evening, then patchy smoke in the late evening and overnight. Lows in the lower 60s. East winds around 5 mph.
Monday   Partly cloudy. Highs in the mid 80s. South winds 5 to 10 mph.
Monday night   Mostly cloudy. A chance of showers in the evening. A chance of thunderstorms. Showers likely after midnight. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of precipitation 70 percent.
Tuesday   Partly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then mostly sunny in the afternoon. Highs in the upper 80s. Chance of precipitation 40 percent.
Tuesday night   Clear. Lows in the lower 60s.
Wednesday   Mostly sunny. Highs in the upper 70s.
Wednesday night   Mostly clear. Lows in the mid 50s.
Thursday   Mostly sunny. Highs around 80.
Thursday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.
Friday   Partly cloudy in the morning, then becoming mostly cloudy. Highs in the lower 80s.
Friday night   Partly cloudy. Lows in the lower 60s.
Saturday   Partly cloudy. Highs in the mid 80s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Heat Wave Continues for Western Corn Belt This Weekend, Then Ends
Posted at 12:00PM Fri Jul 17, 2026 CDT
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