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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

26°F

-3°C

Humidity 66%
Wind Speed NW 14 G 28 mph
Barometer 30.35 in (1028.1 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 30 Nov 8:53 am CST
Extended Forecast for

3 Miles NNE Fairmont City IL

  • Today

    Today: Increasing clouds, with a high near 28. West wind 9 to 16 mph, with gusts as high as 30 mph.

    High: 28 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Cloudy, with a low around 20. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 20 °F

    Cloudy

  • Monday

    Monday: A 50 percent chance of snow after noon. Cloudy, with a high near 32. East wind 3 to 5 mph.

    High: 32 °F

    Cloudy then
    Chance Snow

  • Monday Night

    Monday Night: Snow, mainly before midnight. Low around 21. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 21 °F

    Snow then
    Slight Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. Northwest wind around 6 mph becoming light and variable in the afternoon.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 28. West wind 9 to 16 mph, with gusts as high as 30 mph.
Tonight
Cloudy, with a low around 20. Northwest wind 5 to 8 mph becoming calm in the evening.
Monday
A 50 percent chance of snow after noon. Cloudy, with a high near 32. East wind 3 to 5 mph.
Monday Night
Snow, mainly before midnight. Low around 21. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Partly sunny, with a high near 32. Northwest wind around 6 mph becoming light and variable in the afternoon.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 15.
Thursday
Partly sunny, with a high near 23.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 13.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.
Friday Night
A slight chance of freezing rain. Mostly cloudy, with a low around 25. Chance of precipitation is 20%.
Saturday
Mostly cloudy, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Fairmont City IL
 38.68°N 90.09°W (Elev. 404 ft)
Last Update:
8:21 am CST Nov 30, 2025
Forecast Valid:
9am CST Nov 30, 2025-6pm CST Dec 6, 2025
 
Forecast Discussion
 
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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