County Forecast for Watseka , IL
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060200-
Iroquois-
Including the cities of Watseka and Gilman
111 PM CDT Wed Aug 5 2026

This afternoon   Mostly cloudy. A chance of showers and a slight chance of thunderstorms late. Highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of precipitation 50 percent.
Tonight   Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Patchy fog late. Humid with lows in the upper 60s. East winds around 5 mph, becoming south after midnight. Chance of precipitation 70 percent.
Thursday   Mostly cloudy. Patchy fog early in the morning. A chance of showers with a slight chance of thunderstorms. Humid with highs in the upper 70s. Southwest winds 5 to 10 mph. Chance of precipitation 50 percent.
Thursday night   Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Humid with lows in the mid 60s. South winds around 5 mph. Chance of precipitation 40 percent.
Friday   Mostly cloudy. A slight chance of showers. Humid with highs in the lower 80s. Southwest winds around 5 mph. Chance of precipitation 20 percent.
Friday night   Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the upper 60s. Chance of precipitation 30 percent.
Saturday   Partly cloudy in the morning, then clearing. Highs in the mid 80s.
Saturday night   Clear in the evening, then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of precipitation 30 percent.
Sunday   Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 30 percent.
Sunday night   Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the upper 60s. Chance of precipitation 50 percent.
Monday   Mostly cloudy with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of precipitation 40 percent.
Monday night   Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows around 70. Chance of precipitation 50 percent.
Tuesday   Mostly cloudy with a chance of showers. Highs in the lower 80s. Chance of precipitation 50 percent.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Potential for Heavy Rain in Missouri and Illinois

Heavy rain of 3-4 inches targets east-central Missouri and west-central Illinois through Thursday morning. » More DTN Weather Commentary

Posted at 12:20PM Wed Aug 5, 2026 CDT
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