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.

Partly Cloudy

83°F

28°C

Humidity 55%
Wind Speed SE 20 G 24 mph
Barometer 29.67 in (1003.6 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 14 May 12:51 pm CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 85. Southeast wind around 14 mph, with gusts as high as 21 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Isolated showers and thunderstorms before 8pm. Mostly cloudy, with a low around 69. Southeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Southeast wind 8 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 20%.

    High: 92 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming clear, with a low around 65. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Decreasing
    Clouds

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. South wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 89 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly clear, with a low around 62. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 85. Southeast wind around 14 mph, with gusts as high as 21 mph.
Tonight
Isolated showers and thunderstorms before 8pm. Mostly cloudy, with a low around 69. Southeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
Isolated showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Southeast wind 8 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 65. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Friday
A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. South wind 8 to 15 mph, with gusts as high as 23 mph.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly clear, with a low around 62. Chance of precipitation is 40%.
Saturday
Sunny, with a high near 82.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Monday
Showers and thunderstorms likely. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 70%.
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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:
11:52 am CDT May 14, 2025
Forecast Valid:
2pm CDT May 14, 2025-6pm CDT May 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation