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Current Weather Conditions for O Fallon, IL

A chance of showers and thunderstorms. Partly sunny, with a high near 84. East wind around 9 mph. Chance of precipitation is 40%.
81°F

Conditions

Wind: 9 mph E
Humidity: 67%
Probability of Precipitation: 42%

Hourly Forcast (next 12 hours)

9 PM 10 PM 11 PM 12 AM 1 AM 2 AM 3 AM 4 AM 5 AM 6 AM 7 AM 8 AM 9 AM
81° 81° 81° 78° 76° 74° 73° 72° 71° 70° 68° 67° 66°

Upcoming Week

Day Forecast High Low
This Afternoon
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 84. East wind around 9 mph. Chance of precipitation is 40%.
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Tonight
Slight Chance Showers And Thunderstorms then Mostly Cloudy
A slight chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 64. East wind around 9 mph. Chance of precipitation is 20%.
85°F 71°F
Sunday
Isolated Rain Showers then Isolated Showers And Thunderstorms
Isolated rain showers between 11am and 1pm, then isolated showers and thunderstorms between 1pm and 3pm, then scattered showers and thunderstorms between 3pm and 4pm, then isolated showers and thunderstorms. Partly sunny, with a high near 82. East wind around 7 mph. Chance of precipitation is 30%.
85°F 71°F
Sunday Night
Showers And Thunderstorms Likely
Showers and thunderstorms likely after 11pm. Mostly cloudy, with a low around 64. Southeast wind 1 to 6 mph. Chance of precipitation is 70%.
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Monday
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Showers and thunderstorms likely before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. East wind 2 to 7 mph. Chance of precipitation is 70%.
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Monday Night
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
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Tuesday
Sunny
Sunny, with a high near 81.
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Tuesday Night
Clear
Clear, with a low around 58.
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Wednesday
Sunny
Sunny, with a high near 80.
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Wednesday Night
Mostly Clear
Mostly clear, with a low around 59.
85°F 71°F
Thursday
Sunny
Sunny, with a high near 84.
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Thursday Night
Partly Cloudy
Partly cloudy, with a low around 65.
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Friday
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
85°F 71°F
Friday Night
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
85°F 71°F
Data provided by weather.gov