County Forecast for Watseka , IL
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061400-
Iroquois-
Including the cities of Watseka and Gilman
120 AM CDT Thu Aug 6 2026

Rest of tonight   A chance of showers after midnight. A chance of thunderstorms. Showers likely late. Patchy fog late. Near steady temperature in the upper 60s. Southeast winds around 5 mph. Chance of precipitation 60 percent.
Thursday   Mostly cloudy. Patchy fog early in the morning. Showers likely early in the morning. A chance of thunderstorms. A chance of showers in the late morning and afternoon. Humid with highs in the upper 70s. South winds around 5 mph. Chance of precipitation 60 percent.
Thursday night   Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Humid with lows in the upper 60s. South winds around 5 mph. Chance of precipitation 40 percent.
Friday   Mostly cloudy in the morning, then becoming partly cloudy. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds around 5 mph. Chance of precipitation 20 percent.
Friday night   Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers in the evening. A slight chance of thunderstorms. A chance of showers after midnight. Humid with lows in the upper 60s. Southwest winds around 5 mph. Chance of precipitation 30 percent.
Saturday   Mostly cloudy in the morning, then clearing. Highs in the mid 80s.
Saturday night   Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of precipitation 40 percent.
Sunday   Mostly cloudy with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of precipitation 50 percent.
Sunday night   A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows around 70. Chance of precipitation 40 percent.
Monday   Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 30 percent.
Monday night   A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 70s. Chance of precipitation 50 percent.
Tuesday   Mostly cloudy with a chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs in the lower 80s. Chance of precipitation 60 percent.
Tuesday night   A chance of thunderstorms in the evening. Showers likely. Lows in the mid 60s. Chance of precipitation 60 percent.
Wednesday   Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. 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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