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Current Weather Conditions for O Fallon, IL

Showers and thunderstorms before midnight, then showers and thunderstorms between midnight and 2am, then a chance of showers and thunderstorms. Some of the storms could be severe. Cloudy, with a low around 62. South wind 1 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
67°F

Conditions

Wind: 1 mph S
Humidity: 93%
Probability of Precipitation: 56%

Hourly Forcast (next 12 hours)

2 AM 3 AM 4 AM 5 AM 6 AM 7 AM 8 AM 9 AM 10 AM 11 AM 12 PM 1 PM 2 PM
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Upcoming Week

Day Forecast High Low
Tonight
Showers And Thunderstorms
Showers and thunderstorms before midnight, then showers and thunderstorms between midnight and 2am, then a chance of showers and thunderstorms. Some of the storms could be severe. Cloudy, with a low around 62. South wind 1 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
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Thursday
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 82. Southwest wind 7 to 10 mph. Chance of precipitation is 20%.
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Thursday Night
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 59. Southwest wind around 6 mph. Chance of precipitation is 20%.
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Friday
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 5 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
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Friday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then showers and thunderstorms. Mostly cloudy. Low around 53, with temperatures rising to around 62 overnight. South wind 12 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
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Saturday
Showers And Thunderstorms
Showers and thunderstorms. Partly sunny. High near 64, with temperatures falling to around 60 in the afternoon. Chance of precipitation is 80%.
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Saturday Night
Chance Rain Showers then Mostly Clear
A chance of rain showers before 7pm. Mostly clear, with a low around 40. Chance of precipitation is 30%.
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Sunday
Sunny
Sunny, with a high near 64.
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Sunday Night
Clear
Clear, with a low around 41.
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Monday
Sunny
Sunny, with a high near 71.
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Monday Night
Mostly Clear
Mostly clear, with a low around 50.
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Tuesday
Sunny
Sunny, with a high near 77.
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Tuesday Night
Mostly Clear
Mostly clear, with a low around 55.
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Wednesday
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. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
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Data provided by weather.gov