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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

A Few Clouds

56°F

13°C

Humidity 46%
Wind Speed S 6 mph
Barometer 29.83 in (1009.9 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 18 Nov 4:53 am CST
Extended Forecast for

Fairmont City IL

  • Overnight

    Overnight: A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 52. Southeast wind around 6 mph.

    Low: 52 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of rain and thunderstorms, mainly before 3pm. Mostly cloudy, with a high near 71. Southeast wind 6 to 8 mph becoming northwest in the afternoon.

    High: 71 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46. North wind 3 to 6 mph.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 61. Light north wind.

    High: 61 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after midnight. Cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain likely before 9am, then rain likely and possibly a thunderstorm between 9am and noon, then rain likely after noon. Cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Rain Likely

  • Friday

    Friday: Rain. High near 59. Chance of precipitation is 80%.

    High: 59 °F

    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain
    then Slight
    Chance Rain

Detailed Forecast

Overnight
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 52. Southeast wind around 6 mph.
Tuesday
A 30 percent chance of rain and thunderstorms, mainly before 3pm. Mostly cloudy, with a high near 71. Southeast wind 6 to 8 mph becoming northwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 46. North wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 61. Light north wind.
Wednesday Night
A 40 percent chance of rain after midnight. Cloudy, with a low around 48. Light and variable wind.
Thursday
Rain likely before 9am, then rain likely and possibly a thunderstorm between 9am and noon, then rain likely after noon. Cloudy, with a high near 63. Chance of precipitation is 70%.
Thursday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 50. Chance of precipitation is 70%.
Friday
Rain. High near 59. Chance of precipitation is 80%.
Friday Night
A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 42.
Monday
A 20 percent chance of rain. Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairmont City IL
 38.66°N 90.09°W (Elev. 410 ft)
Last Update:
5:01 am CST Nov 18, 2025
Forecast Valid:
5am CST Nov 18, 2025-6pm CST Nov 24, 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