O'Fallon, Illinois Weather
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Weather Forecast for O'Fallon, Illinois : St. Clair County
Issued: 5:12 pm CST Jan 26, 2022 Latitude: 38.5922715 Longitude: -89.9112124 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
30% chance of snow on Tonight 30% chance of snow on Thursday Partly Sunny on Friday Sunny on Saturday Sunny on Sunday Sunny on Monday 40% chance of rain on Tuesday 70% chance of rain on Wednesday
Low: 18°F High: 41°F High: 26°F High: 36°F High: 42°F High: 49°F High: 53°F High: 45°F
Low: 18°F Low: 12°F Low: 26°F Low: 24°F Low: 35°F Low: 37°F  
Snow Snow Partly Sunny Sunny Sunny Sunny Rain Rain
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Current Conditions at
SCOTT AFB - (KBLV)
21°
Clear
as of 5:56 PM CST
Rel. Humidity: 37%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
5 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
EAST ST LOUIS - (KCPS)
21°
Clear
as of 5:53 PM CST
Rel. Humidity: 44%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
6 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
ALTON - (KALN)
19°
Clear
as of 5:50 PM CST
Rel. Humidity: 48%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
7 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
25°
Clear
as of 5:51 PM CST
Rel. Humidity: 38%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.37 in.
Flight Rule: VFR
Wind Data
8 MPH
140° Southeast
Cloud Level(s): Clear
30% chance of snow Tonight Tonight... A chance of flurries between 1am and 3am, then a chance of snow after 3am. Increasing clouds, with a low around 18. South wind 5 to 9 mph. Chance of precipitation is 30%.

30% chance of snow Thursday Thursday... A chance of sprinkles and snow before noon, then a chance of sprinkles between noon and 2pm. Mostly cloudy, with a high near 41. South wind 8 to 11 mph becoming northwest in the afternoon. Chance of precipitation is 30%.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 18. Northwest wind 8 to 13 mph.

Partly Sunny on Friday Friday... Partly sunny, then gradually becoming sunny, with a high near 26. Northwest wind 10 to 14 mph.

Clear on Friday Night Friday Night... Clear, with a low around 12. Northwest wind 5 to 8 mph becoming calm after midnight.

Sunny on Saturday Saturday... Sunny, with a high near 36.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 26.

Sunny on Sunday Sunday... Sunny, with a high near 42.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 24.

Sunny on Monday Monday... Sunny, with a high near 49.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 35.

40% chance of rain Tuesday Tuesday... A 40 percent chance of rain. Partly sunny, with a high near 53.

70% chance of rain Tuesday Night Tuesday Night... Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.

70% chance of rain Wednesday Wednesday... Showers likely. Mostly cloudy, with a high near 45. Chance of precipitation is 70%.

Sun Almanac for O'Fallon, Illinois
Sunrise: 07:10 AM
Sunset: 5:15 PM
Civil Sunrise:06:41 AM
Civil Sunset: 5:43 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 6:15 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:46 PM
Moon Almanac for O'Fallon, Illinois
Moon Phase: Waning Crescent
Moon Illumination: 34%
Moon Age: 23.7 Days
Moon is currently below the horizon
Distance from Moon to Earth: 226,856 miles
Upcoming Lunar Events for
O'Fallon:
Next EventEvent TimeIllum

Moonrise:02:37 am Thu30.7%
High Moon:07:38 am Thu28.5%
Moonset:12:34 pm Thu26.4%
New Moon: Sun Jan 2
First Quarter: Sun Jan 9
Full Moon: Mon Jan 17
Last Quarter: Tue Jan 25
New Moon: Tue Feb 1
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.