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: KCPS
Warning FLW WEATHER ALERT - (More Info. Click Here) Warning
Issued 306 AM EST Thu Jan 17 2019 Valid Thu Jan 17 2019 - Sat Jan 19 2019 ...Major winter storm continues across the western U.S. and then reaches the Plains by Friday... A severe winter storm has been hammering California Wednesday night, and very heavy snow is expected to continue for the Sierra Nevada and also the mountains of northern California. Blizzard warnings are in effect through Thursday morning for the highest elevations, with snowfall amounts in excess of three fe...

Current Conditions

Fog, 0006 mist
Updated: 01/17 11:01 am
Feels Like:
Humidity: 99%
N 0 mph
30.06 in
3 mi

Sun/Moon Info.

Cloud Cover: 100%
UV Index: 1
Sunrise: 07:15 AM
Sunset: 05:05 PM
Moonrise: 01:51 PM
Moonset: 03:24 AM
Civil Twilight
6:45 AM to 7:14 AM CST
5:03 PM to 5:32 PM CST
Waxing Gibbous Moon
Waxing Gibbous Moon
Update is local observation time. What time is it in O Fallon? 11:01 AM Thursday, January 17, 2019

The rain was steady and unrelenting and, like all steady and unrelenting things, boring. ―Ross Thomas

Illinois Weather Map

Illinois Weather Forecast Maps

O Fallon, IL Weather Forecast

O Fallon 7 Day Outlook

O Fallon, IL Weather Forecast Dated: 936 AM CST Thu Jan 17 2019
Includes the Counties: Saint Clair County Il, Including The Cities Of Belleville And Cahokia
Chance Of Rain
Rest of Today... Cloudy. A 30 percent chance of rain late in the morning. Widespread dense fog late in the morning, then areas of fog in the afternoon. High around 40. Light wind late in the morning becoming northwest around 10 mph in the afternoon.
Patchy Fog
Tonight... Cloudy. Patchy fog after midnight. Low in the lower 30s. Light wind.
Patchy Fog
Friday... Mostly cloudy. Patchy fog in the morning. High in the upper 30s. Light wind in the morning becoming east around 10 mph in the afternoon.
Fri Night
Friday Night... Rain. Low in the mid 30s. East wind 10 to 15 mph. Chance of rain 90 percent.
Rain And Snow
Saturday... Blustery. Rain and snow in the morning, then snow likely in the afternoon. Snow accumulation of 2 to 3 inches. High in the mid 30s. Temperature falling into the 20s. North wind 15 to 25 mph. Chance of precipitation 80 percent.
Sat Night
Chance Of Snow
Saturday Night... Blustery, colder. Mostly cloudy with a 40 percent chance of snow in the evening, then partly cloudy after midnight. Low around 17.
Partly Sunny
Sunday... Colder. Partly sunny. High in the lower 20s. Temperature steady or slowly falling in the afternoon.
Sun Night
Sunday Night... Blustery. Partly cloudy. Low around 15. High in the lower 30s.
MLK Jr Day
Martin Luther King Jr Day... Blustery. Partly cloudy. Low around 15. High in the lower 30s.
Mon Night
Chance Of Snow
Monday Night... Partly cloudy with a 30 percent chance of snow. Low around 30. Temperature steady or slowly rising.
Wintry Mix
Tuesday... Blustery. Mostly cloudy with a 50 percent chance of rain, possibly mixed with snow. High around 40. Temperature steady or slowly falling in the afternoon.
Tue Night
Wintry Mix
Tuesday Night... Mostly cloudy with a 30 percent chance of snow, possibly mixed with rain. Low in the mid 20s.