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.

A Few Clouds

59°F

15°C

Humidity 33%
Wind Speed Calm
Barometer 30.09 in (1018.7 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 30 Apr 9:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: Sunny, with a high near 65. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 46. Northwest wind around 6 mph.

    Low: 46 °F

    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 62. North wind 6 to 8 mph.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. North wind around 6 mph becoming calm in the evening.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62. Light north wind increasing to 5 to 9 mph in the morning.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly clear, with a low around 57.

    Low: 57 °F

    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 65. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
A 30 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 46. Northwest wind around 6 mph.
Friday
Sunny, with a high near 62. North wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 45. North wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 62. Light north wind increasing to 5 to 9 mph in the morning.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 75.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly clear, with a low around 57.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 40%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 76. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
8:01 am CDT Apr 30, 2026
Forecast Valid:
10am CDT Apr 30, 2026-6pm CDT May 6, 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