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

30°F

-1°C

Humidity 41%
Wind Speed NW 7 mph
Barometer 30.50 in (1033.2 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 23 Feb 2:53 pm CST
Extended Forecast for

2 Miles SW Fairview Heights IL

  • Tonight

    Tonight: Mostly clear, with a low around 21. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 21 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. South wind 8 to 17 mph, with gusts as high as 38 mph.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. South wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 54. Light and variable wind becoming northeast around 6 mph in the afternoon.

    High: 54 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 38. East wind 6 to 8 mph.

    Low: 38 °F

    Slight Chance
    Rain then
    Chance Rain

  • Thursday

    Thursday: A 30 percent chance of rain before noon. Partly sunny, with a high near 50.

    High: 50 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 21. Calm wind becoming south 5 to 7 mph after midnight.
Tuesday
Partly sunny, with a high near 53. South wind 8 to 17 mph, with gusts as high as 38 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
Mostly sunny, with a high near 54. Light and variable wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 38. East wind 6 to 8 mph.
Thursday
A 30 percent chance of rain before noon. Partly sunny, with a high near 50.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 48.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 33.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Fairview Heights IL
 38.57°N 90.04°W (Elev. 486 ft)
Last Update:
2:51 pm CST Feb 23, 2026
Forecast Valid:
3pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
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