O Fallon, IL Weather - Find Local Weather

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O Fallon, Illinois Weather

Lat: 38.44N, Lon: 89.99W
Wx Zone: ILZ101 ICAO Used: KBLV
Warning FLW WEATHER ALERT - (More Info. Click Here) Warning
Issued 403 AM EDT Tue Sep 25 2018 Valid Tue Sep 25 2018 - Thu Sep 27 2018 ...Heavy to excessive rainfall possible from the Tennessee Valley to the Northeast... ...Strong to severe thunderstorms expected with a strong cold front pushing from the Midwest to the Northeast Tuesday and Wednesday... The upper-level pattern across the U.S. continues to favor a wet pattern across much of the eastern half of the country the next couple of days. Moisture overriding a remnant surface bou...

Current Conditions

Partly cloudy, 0002 sunny intervals
Partly Cloudy
Updated: 09/25 9:45 am
Feels Like:
Humidity: 93%
N 0 mph
29.94 in
10 mi

Sun/Moon Info.

Cloud Cover: 75%
UV Index: 5
Sunrise: 06:50 AM
Sunset: 06:52 PM
Moonrise: 07:35 PM
Moonset: 07:10 AM
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Update is local observation time. What time is it in O Fallon? 9:45 AM Tuesday, September 25, 2018

If you want to see the sunshine, you have to weather the storm. ―Frank Lane

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O Fallon Weather Forecast

7 day Outlook

O Fallon, IL Weather Forecast Dated: 751 AM CDT Tue Sep 25 2018
Includes the Counties: Saint Clair County Il, Including The Cities Of Belleville And Cahokia
Chance Of T-Storm
Today... Mostly cloudy in the morning and early afternoon then becoming partly sunny. Scattered showers and chance of thunderstorms. High around 80. Southwest wind around 10 mph.
Chance Of T-Storm
Tonight... Cooler. Mostly cloudy with a 50 percent chance of showers and thunderstorms. Low in the upper 50s. Northwest wind 10 to 15 mph.
Mostly Sunny
Wednesday... Cooler. Mostly sunny. High around 70. North wind around 10 mph.
Wed Night
Partly Cloudy
Wednesday Night... Partly cloudy in the evening then becoming mostly cloudy. Low around 50. Light wind.
Mostly Sunny
Thursday... Mostly sunny. High in the mid 70s. Light wind.
Thu Night
Thursday Night... Clear. Low in the mid 50s.
Mostly Sunny
Friday... Mostly sunny. High in the upper 70s.
Fri Night
Partly Cloudy
Friday Night... Partly cloudy. Low in the upper 50s. High in the mid 70s.
Partly Cloudy
Saturday... Partly cloudy. Low in the upper 50s. High in the mid 70s.
Chance Of T-Storm
Sunday... Partly cloudy with a 20 percent chance of showers and thunderstorms. High in the upper 70s.
Sun Night
Partly Cloudy
Sunday Night... Partly cloudy. Low in the lower 60s.