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

Click for Winter Storm Warning for Fairmont, Illinois
Click for Hazardous Weather Outlook for Fairmont, Illinois
Click for Extreme Cold Warning for Fairmont, Illinois
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: 10:31 am CST Jan 25, 2026 Latitude: 38.9089371 Longitude: -90.2142773 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
100% chance of snow on Today Mostly Cloudy on Tonight Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Partly Sunny on Thursday Partly Sunny on Friday Mostly Sunny on Saturday
High: 14°F Low: -6°F High: 16°F High: 30°F High: 24°F High: 20°F High: 22°F High: 22°F
Low: 6 °F Low: -1°F Low: 0°F Low: 8°F Low: 4°F  
Snow Mostly Cloudy Sunny Sunny Mostly Sunny Partly Sunny Partly Sunny Mostly Sunny
-
Current Conditions at
ALTON - (KALN)
10°
Feels like -6°F
Cloudy
Light Snow
as of 10:45 AM CST
Rel. Humidity: 66%
Dew Point: 1°F
Visibility: 2 Miles
Pressure: 30.13 in.
Flight Rule: IFR
Wind Data
16 MPH
340° North
Cloud Level(s): Solid Overcast at 3100ft
Current Conditions at
ST CHARLES - (KSET)
9°
Feels like -9°F
Cloudy
Light Snow
as of 10:54 AM CST
Rel. Humidity: 71%
Dew Point: 1°F
Visibility: 2 1/2 Miles
Pressure: 30.14 in.
Flight Rule: IFR
Wind Data
17 MPH
Gust: 23 MPH
340° North
Cloud Level(s): Broken at 3900ft, Solid Overcast at 5000ft
Current Conditions at
ST LOUIS - (KSTL)
9°
Feels like -8°F
Cloudy
Light Snow
as of 10:51 AM CST
Rel. Humidity: 71%
Dew Point: 1°F
Visibility: 3 Miles
Pressure: 30.12 in.
Flight Rule: MVFR
Wind Data
16 MPH
Gust: 24 MPH
350° North
Cloud Level(s): Few at 2500ft, Broken at 3000ft, Solid Overcast at 3900ft
Current Conditions at
EAST ST LOUIS - (KCPS)
9°
Feels like -8°F
Cloudy
Light Snow
as of 10:53 AM CST
Rel. Humidity: 78%
Dew Point: 3°F
Visibility: 1 1/4 Miles
Pressure: 30.12 in.
Flight Rule: IFR
Wind Data
16 MPH
340° North
Cloud Level(s): Broken at 2000ft, Broken at 2500ft, Solid Overcast at 3000ft
100% chance of snow Today Today... Snow, mainly before 3pm. High near 14. Northwest wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 2 to 4 inches possible.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, then gradually becoming clear, with a low around -6. Wind chill values as low as -20. Northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Sunny on Monday Monday... Sunny and cold, with a high near 16. Wind chill values as low as -20. Northwest wind 8 to 11 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a temperature falling to near 6 by 8pm, then rising to around 14 during the remainder of the night. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 30. West wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around -1.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 24.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 0.
Partly Sunny on Thursday Thursday... Partly sunny and cold, with a high near 20.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 8.
Partly Sunny on Friday Friday... Partly sunny, with a high near 22.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 4.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 22.
Current Radar Image


Sun Almanac for Fairmont, Illinois
Sunrise: 07:12 AM
Sunset: 5:14 PM
Civil Sunrise:06:44 AM
Civil Sunset: 5:43 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 6:15 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:46 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.