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.

Mostly Cloudy

66°F

19°C

Humidity 75%
Wind Speed Calm
Barometer 30.11 in (1019.2 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 28 May 11:53 pm CDT
Extended Forecast for

Cahokia / St. Louis, St. Louis Downtown Airport IL

  • Overnight

    Overnight: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78. North wind 3 to 8 mph.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. East wind 3 to 6 mph.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. East wind 3 to 8 mph.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. East wind around 7 mph.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.

    High: 82 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 56. Calm wind.
Wednesday
Sunny, with a high near 78. North wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 54. East wind 3 to 6 mph.
Thursday
Sunny, with a high near 80. East wind 3 to 8 mph.
Thursday Night
Mostly clear, with a low around 56. East wind around 7 mph.
Friday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 81.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 65.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Cahokia / St. Louis, St. Louis Downtown Airport IL
 38.57°N 90.15°W (Elev. 407 ft)
Last Update:
12:22 am CDT May 29, 2024
Forecast Valid:
12am CDT May 29, 2024-6pm CDT Jun 4, 2024
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation