National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Mostly Cloudy

41°F

5°C

Humidity 53%
Wind Speed SE 8 mph
Barometer 30.21 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 24 Mar 11:35 pm CDT
Extended Forecast for

Fairmont IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. South southeast wind around 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 72. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 72 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. South wind around 10 mph, with gusts as high as 15 mph.

    Low: 53 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm, mainly after 4pm. Increasing clouds, with a high near 79. South southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%.

    High: 79 °F

    Mostly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 33. North northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 33 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. South southeast wind around 5 mph.
Wednesday
Partly sunny, with a high near 72. South southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. South wind around 10 mph, with gusts as high as 15 mph.
Thursday
Showers likely and possibly a thunderstorm, mainly after 4pm. Increasing clouds, with a high near 79. South southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 33. North northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 68.
Monday Night
A chance of showers. Mostly cloudy, with a low around 50.
Tuesday
A chance of showers. Mostly cloudy, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairmont IL
 41.57°N 88.05°W
Last Update:
8:46 pm CDT Mar 24, 2026
Forecast Valid:
11pm CDT Mar 24, 2026-6pm CDT Mar 31, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation