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Current Weather Conditions for O Fallon, IL

Sunny, with a high near 81. South wind 6 to 18 mph, with gusts as high as 28 mph.
60°F

Conditions

Wind: 6 mph SE
Humidity: 84%
Probability of Precipitation: 0%

Hourly Forcast (next 12 hours)

11 AM 12 PM 1 PM 2 PM 3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM 10 PM 11 PM
60° 63° 65° 67° 73° 76° 78° 79° 80° 81° 81° 81° 80°

Upcoming Week

Day Forecast High Low
Today
Sunny
Sunny, with a high near 81. South wind 6 to 18 mph, with gusts as high as 28 mph.
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Tonight
Partly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 3am and 5am, then showers and thunderstorms likely. Partly cloudy, with a low around 63. South wind 12 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
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Friday
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 73. Southwest wind around 10 mph. Chance of precipitation is 90%.
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Friday Night
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 51. Northwest wind around 8 mph. Chance of precipitation is 50%.
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Saturday
Sunny
Sunny, with a high near 76. Northeast wind around 7 mph.
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Saturday Night
Partly Cloudy
Partly cloudy, with a low around 54.
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Sunday
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 20%.
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Sunday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
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Monday
Showers And Thunderstorms
Showers and thunderstorms. Partly sunny, with a high near 76. Chance of precipitation is 80%.
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Monday Night
Showers And Thunderstorms
Showers and thunderstorms. Partly cloudy, with a low around 53. Chance of precipitation is 80%.
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Tuesday
Slight Chance Rain Showers then Sunny
A slight chance of rain showers before 7am. Sunny, with a high near 72. Chance of precipitation is 20%.
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Tuesday Night
Mostly Clear
Mostly clear, with a low around 50.
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Wednesday
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 70. Chance of precipitation is 30%.
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Wednesday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
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Data provided by weather.gov