County Forecast for Watseka , IL
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212215-
Iroquois-
Including the cities of Watseka and Gilman
251 AM CDT Thu May 21 2026

Today   Partly cloudy. Highs in the upper 60s. East winds 10 to 15 mph.
Tonight   Mostly cloudy. Lows in the upper 40s. East winds 10 to 15 mph.
Friday   Mostly cloudy. A slight chance of showers late in the morning. A chance of showers in the afternoon. Highs around 70. East winds 10 to 15 mph. Chance of precipitation 50 percent.
Friday night   Showers likely with a slight chance of thunderstorms. Lows in the mid 50s. East winds 10 to 15 mph, becoming north 5 to 10 mph after midnight. Chance of precipitation 70 percent.
Saturday   Mostly cloudy. A slight chance of showers in the morning. Highs in the mid 70s. Northwest winds 5 to 10 mph. Chance of precipitation 20 percent.
Saturday night   Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 50s. Chance of precipitation 20 percent.
Sunday   Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the upper 70s. Chance of precipitation 40 percent.
Sunday night   Mostly cloudy. A slight chance of showers in the evening. Lows in the upper 50s. Chance of precipitation 20 percent.
Memorial day   Mostly cloudy. Highs in the lower 80s.
Monday night   Mostly cloudy. Lows around 60.
Tuesday   Mostly cloudy. Highs in the lower 80s.
Tuesday night   Mostly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of precipitation 40 percent.
Wednesday   Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 40 percent.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Showers Hitting Drought Areas Thursday
Posted at 5:33AM Thu May 21, 2026 CDT
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