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

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

47°F

8°C

Humidity 86%
Wind Speed W 15 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 7 Mar 1:51 pm CST
Extended Forecast for

Saint Louis MO

  • This Afternoon

    This Afternoon: Cloudy, with a steady temperature around 48. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 48 °F

    Cloudy

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 39. Northwest wind 5 to 9 mph becoming light after midnight.

    Low: 39 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, sunny, with a high near 67. Southwest wind 3 to 8 mph.

    High: 67 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 47. South wind around 7 mph.

    Low: 47 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 79. South wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 82. Chance of precipitation is 50%.

    High: 82 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 53. Chance of precipitation is 90%.

    Low: 53 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before noon, then showers likely. High near 67. Chance of precipitation is 100%.

    High: 67 °F

    Showers then
    Showers
    Likely

Detailed Forecast

This Afternoon
Cloudy, with a steady temperature around 48. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Tonight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 39. Northwest wind 5 to 9 mph becoming light after midnight.
Sunday
Patchy fog before 7am. Otherwise, sunny, with a high near 67. Southwest wind 3 to 8 mph.
Sunday Night
Clear, with a low around 47. South wind around 7 mph.
Monday
Sunny, with a high near 79. South wind 6 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 61.
Tuesday
A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 53. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm before noon, then showers likely. High near 67. Chance of precipitation is 100%.
Wednesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 34.
Thursday
Sunny, with a high near 54.
Thursday Night
Mostly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.62°N 90.26°W (Elev. 486 ft)
Last Update:
2:11 pm CST Mar 7, 2026
Forecast Valid:
2pm CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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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