272100-
Piatt-
Including the city of Monticello
813 AM CDT Mon Jul 27 2026

..extreme heat warning in effect until 9 pm cdt this evening   
Rest of today   Mostly sunny. Patchy fog early this morning. A chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southwest winds 10 to 15 mph. Chance of rain 30 percent. Heat index values up to 113 this afternoon.
Tonight   Partly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the mid 70s. Southwest winds 10 to 15 mph, becoming northwest after midnight. Chance of rain 30 percent.
Tuesday   Mostly sunny. Humid with highs in the mid 80s. North winds 10 to 15 mph.
Tuesday night   Partly cloudy in the evening, then becoming mostly clear. Cooler. Less humid with lows in the lower 60s. Northeast winds 10 to 15 mph, diminishing to around 5 mph after midnight.
Wednesday   Sunny. Highs in the mid 80s. North winds 5 to 10 mph.
Wednesday night   Clear. Lows in the lower 60s.
Thursday   Sunny. Highs in the mid 80s.
Thursday night   Partly cloudy. Lows in the mid 60s.
Friday   Partly sunny in the morning, then becoming mostly cloudy. A 40 percent chance of showers. Highs in the lower 80s.
Friday night   Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 40 percent.
Saturday   Mostly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 40 percent.
Saturday night   Partly cloudy. Lows in the mid 60s.
Sunday   Sunny. Highs in the lower 80s.