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

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

64°F

18°C

Humidity 33%
Wind Speed W 8 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 30 Apr 5:51 pm CDT
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: A 40 percent chance of showers, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 46. South wind around 6 mph becoming northwest after midnight.

    Low: 46 °F

    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 64. North wind 5 to 7 mph.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. North wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 61. Northwest wind 3 to 8 mph.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. Northwest wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.

    Low: 57 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 46. South wind around 6 mph becoming northwest after midnight.
Friday
Sunny, with a high near 64. North wind 5 to 7 mph.
Friday Night
Partly cloudy, with a low around 46. North wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 61. Northwest wind 3 to 8 mph.
Saturday Night
Mostly clear, with a low around 42. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 74.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Monday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 72. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
5:51 pm CDT Apr 30, 2026
Forecast Valid:
6pm CDT Apr 30, 2026-6pm CDT May 7, 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