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.

A Few Clouds

14°F

-10°C

Humidity 58%
Wind Speed W 12 mph
Barometer 30.26 in (1026.5 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 18 Jan 12:51 am CST
Extended Forecast for

Saint Louis MO

  • Overnight

    Overnight: Mostly clear, with a low around 13. West wind 5 to 8 mph.

    Low: 13 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of flurries after 10am, mixing with sprinkles after 5pm. Increasing clouds, with a high near 36. Southwest wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 36 °F

    Mostly Sunny
    then Chance
    Sprinkles/Flurries

  • Sunday Night

    Sunday Night: A chance of flurries before 9pm. Mostly cloudy, then gradually becoming clear, with a low around 13. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Chance
    Flurries

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 22. Northwest wind 7 to 15 mph, with gusts as high as 26 mph.

    High: 22 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12. Northwest wind around 6 mph becoming light and variable.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 13. West wind 5 to 8 mph.
Sunday
A chance of flurries after 10am, mixing with sprinkles after 5pm. Increasing clouds, with a high near 36. Southwest wind 6 to 13 mph, with gusts as high as 23 mph.
Sunday Night
A chance of flurries before 9pm. Mostly cloudy, then gradually becoming clear, with a low around 13. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.
M.L.King Day
Mostly sunny, with a high near 22. Northwest wind 7 to 15 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 12. Northwest wind around 6 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 23.
Thursday
Sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 44.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.26°W (Elev. 499 ft)
Last Update:
1:01 am CST Jan 18, 2026
Forecast Valid:
1am CST Jan 18, 2026-6pm CST Jan 24, 2026
 
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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