url:
Fairmont, Illinois Weather Forecast
Fairmont, Illinois Weather
your sport, your way
Air Sports Net on FacebookAir Sports Net on Google +Air Sports Net on TwitterReceive RSS UpdatesReceive Email Updates

No Watches or Warnings for Fairmont
Change location by the zip code or city,state: or search for other weather forecast locations in Illinois by name.
Weather Forecast for Fairmont, Illinois : Madison County
Issued: 4:57 pm CST Dec 10, 2025 Latitude: 38.9089371 Longitude: -90.2142773 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Mostly Cloudy on Tonight 20% chance of snow on Thursday Partly Sunny on Friday 30% chance of snow on Saturday Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday
Low: 25°F High: 34°F High: 38°F High: 26°F High: 17°F High: 39°F High: 44°F High: 50°F
Low: 32°F Low: 20°F Low: 3°F Low: 9°F Low: 26°F Low: 35°F  
Mostly Cloudy Snow Partly Sunny Snow Sunny Mostly Sunny Partly Sunny Mostly Cloudy
-
Current Conditions at
ALTON - (KALN)
34°
Feels like 24°F
Cloudy
as of 6:50 PM CST
Rel. Humidity: 64%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: MVFR
Wind Data
14 MPH
320° Northwest
Cloud Level(s): Solid Overcast at 2600ft
Current Conditions at
ST CHARLES - (KSET)
34°
Feels like 25°F
Cloudy
as of 6:54 PM CST
Rel. Humidity: 64%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: MVFR
Wind Data
10 MPH
320° Northwest
Cloud Level(s): Solid Overcast at 2800ft
Current Conditions at
ST LOUIS - (KSTL)
34°
Feels like 24°F
Partly Cloudy
as of 6:54 PM CST
Rel. Humidity: 64%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
13 MPH
Gust: 24 MPH
320° Northwest
Cloud Level(s): Scattered at 2700ft
Current Conditions at
EAST ST LOUIS - (KCPS)
34°
Feels like 23°F
Cloudy
as of 6:53 PM CST
Rel. Humidity: 64%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: MVFR
Wind Data
15 MPH
330° Northwest
Cloud Level(s): Solid Overcast at 3000ft
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 25. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.
20% chance of snow Thursday Thursday... A 20 percent chance of snow after 3pm. Mostly cloudy, with a high near 34. Light and variable wind becoming southeast 5 to 8 mph in the morning.
20% chance of snow Thursday Night Thursday Night... A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 32. Southeast wind 6 to 9 mph becoming north after midnight.
Partly Sunny on Friday Friday... Partly sunny, with a high near 38. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 20. Northwest wind 6 to 8 mph.
30% chance of snow Saturday Saturday... A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 26.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 3.
Sunny on Sunday Sunday... Sunny and cold, with a high near 17.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 9.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 39.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 26.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 44.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 35.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 50.
Current Radar Image


Sun Almanac for Fairmont, Illinois
Sunrise: 07:09 AM
Sunset: 4:39 PM
Civil Sunrise:06:39 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:14 PM
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.