County Forecast for Grant Park , IL
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280200-
Kankakee-
Including the cities of Kankakee, Bourbonnais, and Bradley
120 PM CDT Mon Jul 27 2026

..extreme heat warning in effect until 9 pm cdt this evening    ...SEVERE THUNDERSTORM WATCH 520 IN EFFECT UNTIL 7 PM CDT THIS EVENING...
This afternoon   Partly cloudy. A slight chance of showers and thunderstorms. Some thunderstorms may be severe with damaging winds and large hail. Hot. Highs in the lower 90s. Southwest winds around 10 mph. Chance of precipitation 20 percent. Heat index values up to 114.
Tonight   Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the upper 60s. Southwest winds 5 to 10 mph, becoming northwest after midnight. Chance of precipitation 40 percent. Heat index values up to 100 early in the evening.
Tuesday   Mostly cloudy in the morning, then clearing. Highs in the lower 80s. North winds 10 to 15 mph.
Tuesday night   Mostly clear. Lows around 60. North winds 5 to 10 mph.
Wednesday   Sunny. Highs in the lower 80s. North winds 5 to 10 mph.
Wednesday night   Clear. Lows in the lower 60s.
Thursday   Mostly sunny. Highs in the mid 80s.
Thursday night   Partly cloudy. Lows in the mid 60s.
Friday   Partly cloudy in the morning, then mostly cloudy with a chance of showers in the afternoon. Highs in the mid 80s. Chance of precipitation 30 percent.
Friday night   Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of precipitation 50 percent.
Saturday   Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs around 80. Chance of precipitation 50 percent.
Saturday night   Partly cloudy. Lows in the mid 60s.
Sunday   Partly cloudy in the morning, then clearing. Highs in the lower 80s.
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Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Hot, But Front Pushing Into Northern US Monday
Posted at 5:32AM Mon Jul 27, 2026 CDT
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