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Current Weather Conditions for O Fallon, IL

Clear, with a low around 65. Southwest wind around 7 mph.
67°F

Conditions

Wind: 6 mph SW
Humidity: 87%
Probability of Precipitation: 0%

Hourly Forcast (next 12 hours)

9 AM 10 AM 11 AM 12 PM 1 PM 2 PM 3 PM 4 PM 5 PM 6 PM 7 PM 8 PM 9 PM
67° 66° 66° 65° 67° 71° 74° 77° 79° 80° 80° 80° 80°

Upcoming Week

Day Forecast High Low
Overnight
Clear
Clear, with a low around 65. Southwest wind around 7 mph.
78°F 55°F
Sunday
Sunny
Sunny. High near 81, with temperatures falling to around 77 in the afternoon. West wind 6 to 13 mph.
78°F 55°F
Sunday Night
Clear
Clear, with a low around 48. Northwest wind 6 to 9 mph.
78°F 55°F
Monday
Sunny
Sunny. High near 71, with temperatures falling to around 67 in the afternoon. North wind around 8 mph.
78°F 55°F
Monday Night
Clear
Clear, with a low around 44. North wind 1 to 6 mph.
78°F 55°F
Tuesday
Sunny
Sunny, with a high near 73.
78°F 55°F
Tuesday Night
Clear
Clear, with a low around 47.
78°F 55°F
Wednesday
Sunny
Sunny, with a high near 77.
78°F 55°F
Wednesday Night
Clear
Clear, with a low around 49.
78°F 55°F
Thursday
Sunny
Sunny, with a high near 78.
78°F 55°F
Thursday Night
Clear
Clear, with a low around 51.
78°F 55°F
Friday
Sunny
Sunny, with a high near 79.
78°F 55°F
Friday Night
Mostly Clear
Mostly clear, with a low around 52.
78°F 55°F
Saturday
Sunny
Sunny, with a high near 79.
78°F 55°F
Data provided by weather.gov