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Current Weather Conditions for O Fallon, IL

A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and noon, then showers and thunderstorms likely between noon and 1pm, then showers and thunderstorms likely between 1pm and 5pm, then showers and thunderstorms. Cloudy. High near 80, with temperatures falling to around 76 in the afternoon. Southwest wind 8 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
72°F

Conditions

Wind: 8 mph S
Humidity: 85%
Probability of Precipitation: 50%

Hourly Forcast (next 12 hours)

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

Day Forecast High Low
Today
Showers And Thunderstorms Likely
A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and noon, then showers and thunderstorms likely between noon and 1pm, then showers and thunderstorms likely between 1pm and 5pm, then showers and thunderstorms. Cloudy. High near 80, with temperatures falling to around 76 in the afternoon. Southwest wind 8 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
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Tonight
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 7pm, then showers and thunderstorms likely between 7pm and 3am, then a chance of showers and thunderstorms between 3am and 4am, then a chance of showers and thunderstorms. Cloudy, with a low around 67. Northwest wind 3 to 7 mph. Chance of precipitation is 70%.
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Thursday
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Cloudy, with a high near 79. North wind around 7 mph. Chance of precipitation is 40%.
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Thursday Night
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind around 5 mph. Chance of precipitation is 40%.
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Friday
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a high near 80. West wind 2 to 7 mph. Chance of precipitation is 70%.
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Friday Night
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 70%.
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Saturday
Slight Chance Rain Showers
A slight chance of rain showers. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
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Saturday Night
Slight Chance Rain Showers then Partly Cloudy
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
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Sunday
Mostly Sunny then Chance Rain Showers
A chance of rain showers after 1pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
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Sunday Night
Slight Chance Showers And Thunderstorms
A chance of rain showers before 7pm, then a slight chance of showers and thunderstorms. Mostly clear, with a low around 64. Chance of precipitation is 30%.
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Monday
Slight Chance Rain Showers
A slight chance of rain showers. Sunny, with a high near 81. Chance of precipitation is 20%.
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Monday Night
Slight Chance Rain Showers then Mostly Clear
A slight chance of rain showers before 7pm. Mostly clear, with a low around 60. Chance of precipitation is 20%.
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Tuesday
Sunny
Sunny, with a high near 81.
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Tuesday Night
Mostly Clear
Mostly clear, with a low around 62.
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Data provided by weather.gov