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

54°F

12°C

Humidity 57%
Wind Speed Calm
Barometer 30.09 in (1019.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 30 Apr 8:51 am CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Today

    Today: Sunny, with a high near 65. Calm wind becoming west around 6 mph in the afternoon.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: A 40 percent chance of showers, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. Northwest wind around 7 mph.

    Low: 44 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 61. North wind 6 to 10 mph.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. North wind 3 to 8 mph.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 61. North wind 5 to 10 mph.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, 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 78.

    High: 78 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 65. Calm wind becoming west around 6 mph in the afternoon.
Tonight
A 40 percent chance of showers, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 44. Northwest wind around 7 mph.
Friday
Sunny, with a high near 61. North wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 45. North wind 3 to 8 mph.
Saturday
Mostly sunny, with a high near 61. North wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 74.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 76. Chance of precipitation is 70%.
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 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
8:01 am CDT Apr 30, 2026
Forecast Valid:
9am 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