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

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: 9:26 pm CST Jan 10, 2026 Latitude: 38.9089371 Longitude: -90.2142773 View on Google Maps

MouseOver for Detail Forecast
Tonight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
20% chance of snow on Tonight Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on Thursday Partly Sunny on Friday Partly Sunny on Saturday
Low: 26°F High: 39°F High: 51°F High: 58°F High: 43°F High: 38°F High: 43°F High: 34°F
Low: 28°F Low: 36°F Low: 37°F Low: 21°F Low: 30°F Low: 24°F  
Snow Sunny Sunny Partly Sunny Mostly Cloudy Mostly Sunny Partly Sunny Partly Sunny
-
Current Conditions at
ALTON - (KALN)
34°
Feels like 23°F
Partly Cloudy
as of 10:35 PM CST
Rel. Humidity: 55%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 22 MPH
300° Northwest
Cloud Level(s): Scattered at 7000ft
Current Conditions at
ST CHARLES - (KSET)
36°
Feels like 25°F
Partly Cloudy
as of 9:54 PM CST
Rel. Humidity: 51%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.21 in.
Flight Rule: VFR
Wind Data
17 MPH
330° Northwest
Cloud Level(s): Scattered at 6000ft
Current Conditions at
ST LOUIS - (KSTL)
37°
Feels like 28°F
Mostly Cloudy
as of 9:51 PM CST
Rel. Humidity: 60%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 23 MPH
320° Northwest
Cloud Level(s): Broken at 4200ft, Broken at 10000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
39°
Feels like 28°F
Cloudy
as of 9:53 PM CST
Rel. Humidity: 48%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
24 MPH
Gust: 37 MPH
310° Northwest
Cloud Level(s): Few at 4400ft, Few at 6000ft, Solid Overcast at 11000ft
20% chance of snow Tonight Tonight... A chance of flurries between midnight and 5am. Mostly clear, with a low around 26. West wind 14 to 17 mph, with gusts as high as 36 mph.

Sunny on Sunday Sunday... Sunny, with a high near 39. Northwest wind 7 to 15 mph, with gusts as high as 31 mph.

Clear on Sunday Night Sunday Night... Clear, with a low around 28. Southwest wind 5 to 7 mph.

Sunny on Monday Monday... Sunny, with a high near 51. West wind 7 to 10 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 36. Southwest wind 6 to 9 mph.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 58.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 37.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 43.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 21.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 38.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 30.

Partly Sunny on Friday Friday... Partly sunny, with a high near 43.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 24.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 34.

Current Radar Image


Sun Almanac for Fairmont, Illinois
Sunrise: 07:19 AM
Sunset: 4:59 PM
Civil Sunrise:06:50 AM
Civil Sunset: 5:28 PM
Nautical Sunrise: 06:17 AM
Nautical Sunset: 6:01 PM
Astro Sunrise: 05:45 AM
Astro Sunset: 6:33 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.