Fairmont, Illinois Weather
Issued: 10:26 pm CST Dec 25, 2025 Latitude: 38.9089371 Longitude: -90.2142773 View on Google Maps
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Current Conditions at
ALTON - (KALN)
61°
Cloudy
as of 12:35 AM CST
Rel. Humidity: 93%
Dew Point: 59°F
Visibility: 7 Miles
Pressure: 29.78 in.
Flight Rule: MVFR
Cloud Level(s): Solid Overcast at 1400ft
Current Conditions at
ST CHARLES - (KSET)
52°
Cloudy
Fog
as of 12:01 AM CST
Rel. Humidity: 100%
Dew Point: 52°F
Visibility: 1/4 Miles
Pressure: 29.77 in.
Flight Rule: IFR
Current Conditions at
ST LOUIS - (KSTL)
57°
Mostly Cloudy
as of 11:51 PM CST
Rel. Humidity: 100%
Dew Point: 57°F
Visibility: 7 Miles
Pressure: 29.80 in.
Flight Rule: VFR
Cloud Level(s): Few at 1300ft, Broken at 24000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
59°
Clear
Mist
as of 11:53 PM CST
Rel. Humidity: 93%
Dew Point: 57°F
Visibility: 6 Miles
Pressure: 29.79 in.
Flight Rule: VFR
Cloud Level(s): Clear
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Overnight... Partly cloudy, with a low around 56. South wind around 7 mph. |
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Friday... Partly sunny, with a high near 66. Southwest wind 7 to 11 mph becoming northwest in the afternoon. |
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Friday Night... Mostly cloudy, with a low around 45. Northwest wind around 6 mph becoming light and variable. |
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Saturday... Partly sunny, with a high near 67. Southeast wind 6 to 10 mph. |
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Saturday Night... A 40 percent chance of rain after midnight. Cloudy, with a low around 59. South wind 7 to 10 mph. |
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Sunday... Showers and possibly a thunderstorm. High near 70. Chance of precipitation is 80%. |
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Sunday Night... A chance of rain and snow before midnight. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 50%. |
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Monday... Sunny, with a high near 28. Blustery. |
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Monday Night... Mostly clear, with a low around 18. |
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Tuesday... Sunny, with a high near 36. |
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Tuesday Night... Partly cloudy, with a low around 25. |
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Wednesday... Mostly sunny, with a high near 40. |
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Wednesday Night... Mostly clear, with a low around 24. |
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New Year's Day... Sunny, with a high near 38. |
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Current Radar Image
Sun Almanac for Fairmont, Illinois
Sunrise: 07:18 AM
Sunset: 4:45 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:15 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:49 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:21 PM
Illinois' Current Temperatures
Illinois' Satellite Image
Illinois' Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 6382 locations in the contiguous United States |
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High Temp |
77° |
Keathley C 875, Louisiana
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Low Temp |
-6° |
Massena, New York
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Wind Speed |
31mph |
Tooele, Utah
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Wind Gust |
54mph |
Placerville, California
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Wind Chill |
-20° |
Greenville, Maine
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High Pressure |
30.38Hg |
Salida Mountain, Colorado
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Low Pressure |
29.40Hg |
Charlie, Montana
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| # Locations Reporting Snow |
16 |
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| # Locations Reporting Rain |
54 |
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| # Locations Reporting Fog |
126 |
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| Average Temperature in the Contiguous USA |
46° |
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National Weather Service for official information.