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

49°F

9°C

Humidity 66%
Wind Speed NW 14 mph
Barometer 29.99 in (1015.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 18 Apr 8:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: Mostly cloudy early, then gradual clearing, with a high near 57. Northwest wind 7 to 15 mph, with gusts as high as 25 mph.

    High: 57 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Clear, with a low around 43. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 43 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 69. West wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. Northwest wind 5 to 7 mph becoming light and variable after midnight.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Southeast wind 3 to 7 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy early, then gradual clearing, with a high near 57. Northwest wind 7 to 15 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 43. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 69. West wind 5 to 13 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 43. Northwest wind 5 to 7 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 69. Southeast wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 85.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 79. Chance of precipitation is 70%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.62°N 90.26°W (Elev. 486 ft)
Last Update:
9:01 am CDT Apr 18, 2026
Forecast Valid:
9am CDT Apr 18, 2026-6pm CDT Apr 24, 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