County Forecast for Watseka , IL
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302215-
Iroquois-
Including the cities of Watseka and Gilman
207 AM CDT Tue Jun 30 2026

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

Today   Partly cloudy in the morning, then becoming mostly sunny. Hot. Highs in the lower 90s. Southwest winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Heat index values up to 108.
Tonight   Clear with lows in the mid 70s. Southwest winds 5 to 10 mph. Gusts up to 25 mph in the evening. Heat index values up to 100 early in the evening.
Wednesday   Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Heat index values up to 107.
Wednesday night   Clear with lows in the mid 70s. Southwest winds 5 to 10 mph.
Thursday   Sunny in the morning, then becoming partly cloudy. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Heat index values up to 105.
Thursday night   Partly cloudy. A chance of showers and thunderstorms after midnight. Lows in the mid 70s. Chance of precipitation 40 percent.
Friday   Partly cloudy in the morning, then becoming mostly cloudy. A chance of thunderstorms. Showers likely, mainly in the morning. Highs in the lower 90s. Chance of precipitation 70 percent.
Friday night   Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of precipitation 40 percent.
Independence day   Partly cloudy with a chance of showers and thunderstorms. Highs around 90. Chance of precipitation 50 percent.
Saturday night   Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy after midnight. Lows in the upper 60s. Chance of precipitation 40 percent.
Sunday   Mostly cloudy in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 40 percent.
Sunday night   Partly cloudy. Lows in the upper 60s.
Monday   Partly cloudy. Highs in the mid 80s.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Heat, Risk of Storms Continues Tuesday
Posted at 12:09PM Mon Jun 29, 2026 CDT
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