County Forecast for Watseka , IL
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012215-
Iroquois-
Including the cities of Watseka and Gilman
221 AM CDT Wed Jul 1 2026

...EXTREME HEAT WARNING IN EFFECT UNTIL MIDNIGHT CDT THURSDAY
NIGHT...

Today   Sunny. Highs in the lower 90s. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Heat index values up to 107.
Tonight   Clear with lows in the upper 70s. Southwest winds 5 to 10 mph. Heat index values up to 100 early in the evening.
Thursday   Mostly sunny. Hot with highs in the lower 90s. Southwest winds 5 to 10 mph. Heat index values up to 105.
Thursday night   Mostly clear in the evening, then becoming partly cloudy. A chance of showers and thunderstorms after midnight. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of precipitation 40 percent. Heat index values up to 103 early in the evening.
Friday   Partly cloudy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of precipitation 60 percent. Heat index values up to 104.
Friday night   Partly cloudy. A slight chance of showers and thunderstorms in the evening, then showers and thunderstorms likely after midnight. Lows in the mid 70s. Chance of precipitation 60 percent.
Independence day   Showers and thunderstorms likely. Highs in the upper 80s. Chance of precipitation 70 percent.
Saturday night   Mostly cloudy with a chance of showers and thunderstorms. Lows around 70. Chance of precipitation 50 percent.
Sunday   Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 50 percent.
Sunday night   Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 60s.
Monday   Mostly cloudy in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 30 percent.
Monday night   Partly cloudy. Lows in the mid 60s.
Tuesday   Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 80s.
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Bryce Anderson – DTN Meteorologist
Strong Storms Continue to Build on Edge of Heatwave Wednesday

Showers, thunderstorms for Central Plains to Upper Midwest, Great Lakes. Showers for Delta, Southeast. » More DTN Weather Commentary

Posted at 5:35AM Wed Jul 1, 2026 CDT
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