County Forecast for Watseka , IL
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032200-
Iroquois-
Including the cities of Watseka and Gilman
930 AM CDT Fri Jul 3 2026

...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT /8 PM EDT/ THIS
EVENING...

Rest of today   Partly cloudy late in the morning, then becoming mostly cloudy. A slight chance of showers and thunderstorms late in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of precipitation 50 percent. Heat index values up to 104.
Tonight   Mostly cloudy. A chance of showers and thunderstorms. Humid with lows in the lower 70s. Southwest winds around 5 mph. Chance of precipitation 50 percent.
Independence day   Mostly cloudy. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Humid with highs in the upper 80s. Southwest winds around 5 mph. Chance of precipitation 70 percent.
Saturday night   Thunderstorms likely in the evening. Showers likely. A chance of thunderstorms after midnight. Humid with lows around 70. Southwest winds around 5 mph. Chance of precipitation 60 percent.
Sunday   Mostly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. West winds around 5 mph. Chance of precipitation 50 percent.
Sunday night   A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the mid 60s. Chance of precipitation 20 percent.
Monday   Mostly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 20 percent.
Monday night   Partly cloudy. Lows in the lower 60s.
Tuesday   Partly cloudy. Highs in the mid 80s.
Tuesday night   Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s.
Wednesday   Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 80s.
Wednesday night   Partly cloudy. Lows in the mid 60s.
Thursday   Partly cloudy in the morning, then mostly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 30 percent.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Hot, Humid, Stormy Holiday Weekend
Posted at 11:59AM Thu Jul 2, 2026 CDT
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