Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fog/Mist

67°F

19°C

Humidity 97%
Wind Speed S 3 mph
Barometer 30.05 in (1017.4 mb)
Dewpoint 66°F (19°C)
Visibility 6.00 mi
Last update 15 Oct 1:53 am CDT
Extended Forecast for

East St. Louis IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am.  Mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 1pm, then a chance of showers and thunderstorms after 1pm.  Cloudy, then gradual clearing during the afternoon, with a high near 81. Light and variable wind becoming south 5 to 10 mph in the morning.  Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am.  Increasing clouds, with a low around 49. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph.  Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 58. Northwest wind around 18 mph, with gusts as high as 28 mph.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. North wind 9 to 16 mph, with gusts as high as 24 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

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

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 67. Calm wind.
Thursday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradual clearing during the afternoon, with a high near 81. Light and variable wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely before 2am, then isolated showers between 2am and 3am. Increasing clouds, with a low around 49. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 58. Northwest wind around 18 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 41. North wind 9 to 16 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 61.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
East St. Louis IL
 38.62°N 90.12°W (Elev. 413 ft)
1:26 am CDT Oct 15, 2026
2am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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Additional Resources

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