County Forecast for Monticello , IL
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040800-
Piatt-
Including the city of Monticello
736 PM CDT Thu Jul 3 2025

Tonight   Mostly clear. Lows around 70. South winds around 5 mph.
Independence day   Sunny. Highs in the lower 90s. South winds 5 to 10 mph.
Friday night   Mostly clear. Lows around 70. South winds 5 to 10 mph.
Saturday   Sunny. Highs in the lower 90s. South winds 5 to 10 mph.
Saturday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. South winds 5 to 10 mph.
Sunday   Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent.
Sunday night   Mostly cloudy. A chance of showers after midnight. Lows in the upper 60s. Chance of rain 50 percent.
Monday   Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent.
Monday night   Mostly clear. Lows in the upper 60s.
Tuesday   Mostly sunny. Highs in the upper 80s.
Tuesday night   Mostly cloudy. A chance of showers after midnight. Lows in the upper 60s. Chance of rain 30 percent.
Wednesday   Mostly sunny in the morning, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent.
Wednesday night   Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50 percent.
Thursday   Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.
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Bryce Anderson – DTN Meteorologist
Thunderstorms Could Threaten Holiday Fun
Posted at 12:09PM Thu Jul 3, 2025 CDT
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