County Forecast for Watseka , IL
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192300-
Iroquois-
Including the cities of Watseka and Gilman
1036 AM CDT Sat Sep 19 2026

Rest of today   Cloudy. Showers and a chance of thunderstorms late in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. East winds around 5 mph, becoming south in the afternoon. Chance of precipitation 90 percent.
Tonight   Cloudy. A slight chance of showers and thunderstorms early in the evening, then a chance of showers and thunderstorms in the late evening and overnight. Humid with lows in the mid 60s. South winds around 5 mph, becoming west after midnight. Chance of precipitation 50 percent.
Sunday   A chance of showers and thunderstorms early in the morning, then showers with a slight chance of thunderstorms in the late morning and afternoon. Humid with highs in the mid 70s. North winds 5 to 10 mph, increasing to northeast 10 to 15 mph in the afternoon. Chance of precipitation 80 percent.
Sunday night   Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the mid 50s. Northeast winds around 10 mph. Chance of precipitation 50 percent.
Monday   Mostly cloudy. Showers likely, mainly in the morning. Highs in the upper 60s. Northeast winds 10 to 15 mph. Chance of precipitation 70 percent.
Monday night   Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 50s. Chance of precipitation 20 percent.
Tuesday   Mostly cloudy. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of precipitation 40 percent.
Tuesday night   Mostly cloudy. Lows in the lower 50s.
Wednesday   Mostly cloudy. Highs in the upper 60s.
Wednesday night   Mostly cloudy. Lows in the lower 50s.
Thursday   Mostly cloudy. Highs around 70.
Thursday night   Partly cloudy. Lows in the lower 50s.
Friday   Partly cloudy. Highs in the lower 70s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Heavy Rain Moving Through Northern US This Weekend
Posted at 11:40AM Fri Sep 18, 2026 CDT
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