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Regional Weather Forecast

Monday Oct 6
Chance of T-Storm

Day: Mostly sunny. A chance of showers and thunderstorms this afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 50 percent.

Night: Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy after midnight. Lows in the mid 60s. Southeast winds 5 to 10 mph, becoming southwest after midnight. Chance of rain 50 percent.

Tuesday Oct 7
Chance of T-Storm

Day: Mostly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 70s. North winds 10 to 15 mph. Chance of rain 20 percent.

Night: Mostly cloudy in the evening, then clearing. Cooler. Less humid with lows in the lower 50s. North winds 5 to 10 mph.

Wednesday Oct 8
Sunny

Day: Sunny. Highs in the mid 70s. Northeast winds 5 to 10 mph.

Night: Clear. Lows in the mid 40s. Highs in the lower 70s.

Thursday Oct 9
Clear

Day: Clear. Lows in the mid 40s. Highs in the lower 70s.

Night: Mostly clear. Lows in the mid 40s. Highs in the mid 70s.

Friday Oct 10
Mostly Clear

Day: Mostly clear. Lows in the mid 40s. Highs in the mid 70s.

Night: Partly cloudy. Lows in the mid 50s.

Saturday Oct 11
Mostly Clear

Day: Mostly clear. Highs in the lower 80s. Lows in the lower 50s.

Sunday Oct 12
Mostly Clear

Day: Mostly clear. Highs in the lower 80s. Lows in the lower 50s.


More Local Weather Information

O Fallon Weather Warnings
O Fallon Doppler Radar
About Missouri Weather
Missouri Barometric Pressure
Missouri Radar Map