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

88°F

31°C

Humidity 52%
Wind Speed SW 8 mph
Barometer 29.93 in (1013.1 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 13 Oct 11:53 am CDT
Extended Forecast for

Fairview Heights IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 95. Southwest wind around 9 mph.

    High: 95 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 72. South wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 60%.

    Low: 72 °F

    Mostly Clear
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. Patchy fog between 8am and 2pm. High near 78. Light and variable wind becoming west around 5 mph in the morning. Chance of precipitation is 90%.

    High: 78 °F

    Showers and
    Patchy Fog
    then Showers
    Likely and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 3am, then showers likely between 3am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 70%.

    Low: 68 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 83. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 83 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 60. Breezy.

    High: 60 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 95. Southwest wind around 9 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 72. South wind 6 to 9 mph becoming west after midnight. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. Patchy fog between 8am and 2pm. High near 78. Light and variable wind becoming west around 5 mph in the morning. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms before 3am, then showers likely between 3am and 4am, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm. High near 83. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 60. Breezy.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 63.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 75.
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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:
11:26 am CDT Oct 13, 2026
Forecast Valid:
12pm CDT Oct 13, 2026-6pm CDT Oct 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation