National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

23°C

73°F

Humidity 51%
Wind Speed SE 19 km/h
Barometer 1020.9 mb (30.16 in)
Dewpoint 12°C (54°F)
Visibility 16 km
Last update 31 May 9:53 am CDT
Extended Forecast for

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

  • Today

    Today: Mostly cloudy, with a high near 27. Southeast wind 18 to 23 km/h, with gusts as high as 34 km/h.

    High: 27 °C

    Mostly Cloudy

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 19. East wind 10 to 13 km/h, with gusts as high as 34 km/h. Chance of precipitation is 90%.

    Low: 19 °C

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 24. Southeast wind 11 to 14 km/h becoming south in the afternoon. Chance of precipitation is 80%.

    High: 24 °C

    Showers

  • Saturday Night

    Saturday Night: Cloudy, then gradually becoming partly cloudy, with a low around 17. Northwest wind 6 to 11 km/h becoming light in the evening.

    Low: 17 °C

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 30. Calm wind becoming southeast 5 to 10 km/h in the afternoon.

    High: 30 °C

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 19.

    Low: 19 °C

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 31. Chance of precipitation is 70%.

    High: 31 °C

    Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21.

    Low: 21 °C

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 31.

    High: 31 °C

    Chance
    T-storms

Detailed Forecast

Today
Mostly cloudy, with a high near 27. Southeast wind 18 to 23 km/h, with gusts as high as 34 km/h.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 19. East wind 10 to 13 km/h, with gusts as high as 34 km/h. Chance of precipitation is 90%.
Saturday
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 24. Southeast wind 11 to 14 km/h becoming south in the afternoon. Chance of precipitation is 80%.
Saturday Night
Cloudy, then gradually becoming partly cloudy, with a low around 17. Northwest wind 6 to 11 km/h becoming light in the evening.
Sunday
Mostly sunny, with a high near 30. Calm wind becoming southeast 5 to 10 km/h in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 19.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 31. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 31.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 21.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 30.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 18.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 29.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Cahokia / St. Louis, St. Louis Downtown Airport IL
 38.57°N 90.15°W (Elev. 407 m)
Last Update:
10:07 am CDT May 31, 2024
Forecast Valid:
10am CDT May 31, 2024-6pm CDT Jun 6, 2024
 
Forecast Discussion
 
Get as KML Get as XML

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