County Forecast for Watseka , IL
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130000-
Iroquois-
Including the cities of Watseka and Gilman
405 AM CDT Wed Aug 12 2026

Early this morning   Partly cloudy late, then becoming mostly cloudy. Patchy fog. A slight chance of showers and thunderstorms. Temperatures in the upper 60s. South winds around 5 mph. Chance of precipitation 20 percent.
Today   Patchy fog early in the morning. A slight chance of showers and thunderstorms early in the morning, then showers and thunderstorms likely in the late morning and early afternoon. A chance of showers and thunderstorms late. Humid. Highs in the mid 80s. West winds 5 to 10 mph. Chance of precipitation 70 percent.
Tonight   Mostly cloudy. A slight chance of showers and thunderstorms. Humid with lows in the upper 60s. East winds around 5 mph. Chance of precipitation 20 percent.
Thursday   Mostly cloudy. A slight chance of thunderstorms until late afternoon. A chance of showers. A chance of thunderstorms late. Humid with highs in the lower 80s. East winds around 5 mph. Chance of precipitation 50 percent.
Thursday night   Showers likely with a chance of thunderstorms. Humid with lows in the upper 60s. Northeast winds around 5 mph. Chance of precipitation 70 percent.
Friday   Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Humid with highs in the lower 80s. East winds around 5 mph. Chance of precipitation 40 percent.
Friday night   Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of precipitation 40 percent.
Saturday   Mostly cloudy with a chance of showers and thunderstorms in the morning, then partly cloudy with a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 50 percent.
Saturday night   Partly cloudy. Lows in the lower 70s.
Sunday   Partly cloudy in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 30 percent.
Sunday night   Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of precipitation 30 percent.
Monday   Partly cloudy. Highs in the upper 70s.
Monday night   Partly cloudy. Lows around 60.
Tuesday   Partly cloudy. Highs in the upper 70s.
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Bryce Anderson – DTN Meteorologist
More Rounds of Severe Weather Possible Wednesday

Severe storms, including a destructive bow echo, are targeting the Midwest Tuesday with more threats ahead. » More DTN Weather Commentary

Posted at 12:09PM Tue Aug 11, 2026 CDT
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