Fairmont, Illinois Weather
Issued: 3:16 am CST Dec 25, 2025 Latitude: 38.9089371 Longitude: -90.2142773 View on Google Maps
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| Morning Fog |
Mostly Cloudy |
Mostly Sunny |
Mostly Cloudy |
Thunderstorms |
Sunny |
Sunny |
Partly Sunny |
Current Conditions at
ALTON - (KALN)
54°
Cloudy
Fog
as of 4:15 AM CST
Rel. Humidity: 93%
Dew Point: 52°F
Visibility: 1/2 Miles
Pressure: 30.05 in.
Flight Rule: IFR
Cloud Level(s): Solid Overcast at 1900ft
Current Conditions at
ST CHARLES - (KSET)
48°
Cloudy
Mist
as of 3:54 AM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 5 Miles
Pressure: 30.04 in.
Flight Rule: LIFR
Cloud Level(s): Broken at 200ft, Solid Overcast at 2000ft
Current Conditions at
ST LOUIS - (KSTL)
55°
Cloudy
as of 3:51 AM CST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 8 Miles
Pressure: 30.05 in.
Flight Rule: MVFR
Cloud Level(s): Solid Overcast at 2000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
55°
Cloudy
Mist
as of 4:07 AM CST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 4 Miles
Pressure: 30.04 in.
Flight Rule: MVFR
Cloud Level(s): Solid Overcast at 2300ft
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Christmas Day... Widespread dense fog, mainly before 8am. Otherwise, cloudy, with a high near 65. Calm wind becoming east around 6 mph in the afternoon. |
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Tonight... Mostly cloudy, with a low around 56. East wind around 7 mph becoming south after midnight. |
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Friday... Mostly sunny, with a high near 69. Southwest wind 6 to 10 mph becoming northwest in the afternoon. |
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Friday Night... Partly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening. |
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Saturday... Mostly cloudy, with a high near 66. Southeast wind 5 to 10 mph. |
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Saturday Night... A 20 percent chance of rain after midnight. Cloudy, with a steady temperature around 61. |
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Sunday... Rain likely, with thunderstorms also possible after noon. Cloudy, with a high near 66. Chance of precipitation is 70%. |
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Sunday Night... A chance of rain and snow before midnight. Mostly cloudy, with a low around 20. Blustery. Chance of precipitation is 30%. |
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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... Mostly clear, with a low around 24. |
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Wednesday... Partly sunny, with a high near 42. |
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Current Radar Image
Sun Almanac for Fairmont, Illinois
Sunrise: 07:18 AM
Sunset: 4:44 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:14 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:48 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:20 PM
Illinois' Current Temperatures
Illinois' Satellite Image
Illinois' Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 7034 locations
in the contiguous United States |
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High
Temp |
77° |
Keathley C 875, Louisiana
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Low
Temp |
3° |
Rolla Municipal A/P, North Dakota
and 1 other location
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Wind
Speed |
41mph |
Half Moon Bay A/P, California
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Wind
Gust |
61mph |
Madison County Exec, Alabama
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Wind
Chill |
-15° |
Rolla Municipal A/P, North Dakota
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High
Pressure |
30.48Hg |
Salida Mountain, Colorado
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Low
Pressure |
29.25Hg |
Charlie, Montana
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| # Locations Reporting Snow |
26 |
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| # Locations Reporting Rain |
77 |
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| # Locations Reporting Thunderstorms / Lightning |
1 |
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| # Locations Reporting Fog |
230 |
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| Average Temperature in the Contiguous USA |
44° |
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National Weather Service for official information.
