Fairmont, Illinois Weather
Issued: 10:56 am CST Jan 22, 2026 Latitude: 38.9089371 Longitude: -90.2142773 View on Google Maps
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Current Conditions at
ALTON - (KALN)
36°
Clear
as of 11:50 AM CST
Rel. Humidity: 29%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.35 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
36°
Clear
as of 11:54 AM CST
Rel. Humidity: 29%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.34 in.
Flight Rule: VFR
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
36°
Mostly Cloudy
as of 11:51 AM CST
Rel. Humidity: 31%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.34 in.
Flight Rule: VFR
Cloud Level(s): Few at 17000ft, Broken at 25000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
36°
Clear
as of 11:53 AM CST
Rel. Humidity: 29%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.35 in.
Flight Rule: VFR
Cloud Level(s): Clear
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This Afternoon... Mostly cloudy, then gradually becoming sunny, with a high near 38. West wind 5 to 7 mph. |
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Tonight... Partly cloudy, with a low around 7. Light northwest wind becoming north 11 to 16 mph in the evening. Winds could gust as high as 25 mph. |
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Friday... Partly sunny and cold, with a high near 12. Wind chill values as low as -10. North wind 13 to 17 mph, with gusts as high as 25 mph. |
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Friday Night... A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 4. Wind chill values as low as -10. Northeast wind around 11 mph. |
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Saturday... Snow likely, mainly after noon. Cloudy and cold, with a high near 14. Northeast wind around 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible. |
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Saturday Night... Snow. Low around 9. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible. |
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Sunday... A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 18. |
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Sunday Night... Partly cloudy, with a low around 2. |
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Monday... Sunny, with a high near 22. |
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Monday Night... Mostly clear, with a low around 11. |
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Tuesday... Mostly sunny, with a high near 34. |
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Tuesday Night... Mostly cloudy, with a low around 15. |
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Wednesday... Partly sunny, with a high near 31. |
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Current Radar Image
Sun Almanac for Fairmont, Illinois
Sunrise: 07:14 AM
Sunset: 5:11 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:39 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 6:12 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:43 PM
Illinois' Current Temperatures
Illinois' Satellite Image
Illinois' Current Wind Direction
| National Summary |
of upper and lower values of current conditions amongst 7188 locations in the contiguous United States |
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High Temp |
82° |
Okeechobee Cnty A/P, Florida
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Low Temp |
-22° |
Rolla Municipal A/P, North Dakota
and 1 other location
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Wind Speed |
32mph |
Maurice, Iowa
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Wind Gust |
48mph |
Watertown, New York
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Wind Chill |
-55° |
Rolla Municipal A/P, North Dakota
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High Pressure |
30.68Hg |
Charlie, Montana
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Low Pressure |
29.63Hg |
Midlothian, Texas
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| # Locations Reporting Snow |
84 |
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| # Locations Reporting Rain |
36 |
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| # Locations Reporting Fog |
17 |
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| Average Temperature in the Contiguous USA |
40° |
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National Weather Service for official information.