O'Fallon, Illinois Weather
No Watches or Warnings for O'Fallon
Issued: 5:01 am CST Dec 7, 2025 Latitude: 38.5922715 Longitude: -89.9112124 View on Google Maps
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Rain & Snow |
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Current Conditions at
SCOTT AFB - (KBLV)
39°
Cloudy
Mist
as of 5:55 AM CST
Rel. Humidity: 93%
Dew Point: 37°F
Visibility: 5 Miles
Pressure: 29.93 in.
Flight Rule: MVFR
Wind Data
7 MPH
210° Southwest
Cloud Level(s): Broken at 1000ft, Solid Overcast at 3300ft
Current Conditions at
EAST ST LOUIS - (KCPS)
39°
Cloudy
as of 5:53 AM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 8 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Cloud Level(s): Solid Overcast at 3200ft
Current Conditions at
ALTON - (KALN)
37°
Cloudy
Mist
as of 5:55 AM CST
Rel. Humidity: 86%
Dew Point: 34°F
Visibility: 5 Miles
Pressure: 29.94 in.
Flight Rule: MVFR
Cloud Level(s): Scattered at 1000ft, Scattered at 1900ft, Solid Overcast at 3200ft
Current Conditions at
ST LOUIS - (KSTL)
39°
Mostly Cloudy
as of 5:51 AM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: MVFR
Cloud Level(s): Broken at 2800ft
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Today... A chance of sprinkles and flurries before 7am, then a chance of sprinkles between 7am and 11am. Cloudy, with a high near 41. Light and variable wind becoming north 9 to 14 mph in the morning. Winds could gust as high as 22 mph. |
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Tonight... Mostly cloudy, with a low around 23. North wind 7 to 13 mph, with gusts as high as 22 mph. |
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Monday... Mostly cloudy, then gradually becoming sunny, with a high near 35. North wind around 6 mph becoming calm in the morning. |
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Monday Night... Partly cloudy, with a low around 26. Light southeast wind becoming south 5 to 10 mph in the evening. |
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Tuesday... Mostly sunny, with a high near 52. South wind 10 to 14 mph, with gusts as high as 22 mph. |
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Tuesday Night... Mostly cloudy, with a low around 41. |
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Wednesday... Partly sunny, with a high near 49. |
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Wednesday Night... A slight chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 20%. |
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Thursday... A chance of rain and snow, mainly before noon. Mostly cloudy, with a high near 38. Chance of precipitation is 30%. |
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Thursday Night... A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 18. Chance of precipitation is 20%. |
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Friday... Mostly sunny, with a high near 25. |
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Friday Night... Mostly cloudy, with a low around 7. |
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Saturday... Partly sunny, with a high near 22. |
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Current Radar Image
Sun Almanac for O'Fallon, Illinois
Sunrise: 07:04 AM
Sunset: 4:38 PM
Civil Sunrise:06:35 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:02 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:30 AM
Astro Sunset: 6:13 PM
Illinois' Current Temperatures
Illinois' Satellite Image
Illinois' Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 7014 locations
in the contiguous United States |
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High
Temp |
81° |
Keathley C 875, Louisiana
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Low
Temp |
-20° |
Cook, Minnesota
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Wind
Speed |
30mph |
Dubois Municipal, Wyoming
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Wind
Gust |
43mph |
Dakota Hill, Colorado
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Wind
Chill |
-28° |
Cloquet, Minnesota
and 1 other location
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High
Pressure |
30.35Hg |
Fargo, North Dakota
and 1 other location
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Low
Pressure |
29.82Hg |
Cleburne, Texas
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| # Locations Reporting Snow |
117 |
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| # Locations Reporting Rain |
66 |
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| # Locations Reporting Fog |
159 |
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| Average Temperature in the Contiguous USA |
33° |
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National Weather Service for official information.
