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.

Overcast

68°F

20°C

Humidity 100%
Wind Speed SE 5 mph
Barometer 30.01 in (1016.0 mb)
Dewpoint 68°F (20°C)
Visibility 8.00 mi
Last update 15 Oct 6:53 am CDT
Extended Forecast for

Fairview Heights IL

  • Today

    Today: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 81. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am. Increasing clouds, with a low around 49. Southwest wind 11 to 18 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 56. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 28 mph.

    High: 56 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Cloudy during the early evening, then gradual clearing, with a low around 41. North wind 10 to 17 mph.

    Low: 41 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Sunny, with a high near 60. North wind 3 to 8 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

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

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Cloudy, then gradually becoming mostly sunny, with a high near 81. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am. Increasing clouds, with a low around 49. Southwest wind 11 to 18 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 56. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 28 mph.
Friday Night
Cloudy during the early evening, then gradual clearing, with a low around 41. North wind 10 to 17 mph.
Saturday
Sunny, with a high near 60. North wind 3 to 8 mph.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairview Heights IL
 38.59°N 90.01°W (Elev. 548 ft)
Last Update:
5:11 am CDT Oct 15, 2026
Forecast Valid:
8am CDT Oct 15, 2026-6pm CDT Oct 21, 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