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Current Weather Conditions for O Fallon, IL

Showers and thunderstorms likely before 3pm, then showers and thunderstorms. Cloudy. High near 73, with temperatures falling to around 69 in the afternoon. Southwest wind 8 to 12 mph. Chance of precipitation is 100%.
73°F

Conditions

Wind: 10 mph SW
Humidity: 76%
Probability of Precipitation: 48%

Hourly Forcast (next 12 hours)

4 PM 5 PM 6 PM 7 PM 8 PM 9 PM 10 PM 11 PM 12 AM 1 AM 2 AM 3 AM 4 AM
73° 71° 70° 70° 70° 70° 69° 68° 67° 65° 63° 63° 63°

Upcoming Week

Day Forecast High Low
Today
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 3pm, then showers and thunderstorms. Cloudy. High near 73, with temperatures falling to around 69 in the afternoon. Southwest wind 8 to 12 mph. Chance of precipitation is 100%.
73°F 56°F
Tonight
Showers And Thunderstorms
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 50. West wind 8 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 100%.
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Sunday
Chance Rain Showers then Mostly Sunny
A chance of rain showers before 7am. Mostly sunny, with a high near 64. Northwest wind 16 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
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Sunday Night
Clear
Clear, with a low around 43. Southwest wind 3 to 13 mph.
73°F 56°F
Monday
Sunny
Sunny, with a high near 72. South wind 6 to 20 mph, with gusts as high as 29 mph.
73°F 56°F
Monday Night
Mostly Clear
Mostly clear, with a low around 49.
73°F 56°F
Tuesday
Sunny
Sunny, with a high near 65.
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Tuesday Night
Clear
Clear, with a low around 39.
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Wednesday
Sunny
Sunny, with a high near 66.
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Wednesday Night
Mostly Clear
Mostly clear, with a low around 43.
73°F 56°F
Thursday
Mostly Sunny then Slight Chance Rain Showers
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 70. Chance of precipitation is 20%.
73°F 56°F
Thursday Night
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
73°F 56°F
Friday
Chance Rain Showers
A chance of rain showers. Mostly sunny, with a high near 69. Chance of precipitation is 30%.
73°F 56°F
Friday Night
Slight Chance Rain Showers
A slight chance of rain showers. Partly cloudy, with a low around 49. Chance of precipitation is 20%.
73°F 56°F
Data provided by weather.gov