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Current Weather Conditions for O Fallon, MO

Partly sunny, with a high near 79. Northeast wind around 6 mph.
70°F

Conditions

Wind: 5 mph E
Humidity: 63%
Probability of Precipitation: 4%

Hourly Forcast (next 12 hours)

3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM 10 PM 11 PM 12 AM 1 AM 2 AM 3 AM
70° 74° 76° 77° 78° 78° 77° 76° 76° 74° 70° 68° 67°

Upcoming Week

Day Forecast High Low
Labor Day
Partly Sunny
Partly sunny, with a high near 79. Northeast wind around 6 mph.
78°F 66°F
Tonight
Mostly Cloudy
Mostly cloudy, with a low around 59. North wind around 5 mph.
78°F 66°F
Tuesday
Mostly Sunny
Mostly sunny, with a high near 80. North wind around 5 mph.
78°F 66°F
Tuesday Night
Mostly Clear
Mostly clear, with a low around 59. Northwest wind around 3 mph.
78°F 66°F
Wednesday
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 1pm and 4pm, then a slight chance of showers and thunderstorms. Sunny. High near 85, with temperatures falling to around 81 in the afternoon. West wind 2 to 8 mph. Chance of precipitation is 20%.
78°F 66°F
Wednesday Night
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
78°F 66°F
Thursday
Chance Rain Showers then Mostly Sunny
A chance of rain showers before 7am. Mostly sunny, with a high near 72. Chance of precipitation is 30%.
78°F 66°F
Thursday Night
Mostly Clear
Mostly clear, with a low around 52.
78°F 66°F
Friday
Sunny
Sunny, with a high near 78.
78°F 66°F
Friday Night
Mostly Clear
Mostly clear, with a low around 51.
78°F 66°F
Saturday
Sunny
Sunny, with a high near 77.
78°F 66°F
Saturday Night
Mostly Clear
Mostly clear, with a low around 50.
78°F 66°F
Sunday
Sunny
Sunny, with a high near 79.
78°F 66°F
Sunday Night
Mostly Clear
Mostly clear, with a low around 53.
78°F 66°F
Data provided by weather.gov