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.

Mostly Cloudy

27°F

-3°C

Humidity 39%
Wind Speed SW 12 mph
Barometer 29.99 in (1017.1 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 18 Jan 3:51 pm CST
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 11. Northwest wind 10 to 17 mph, with gusts as high as 33 mph.

    Low: 11 °F

    Gradual
    Clearing

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 21. Northwest wind 8 to 16 mph, with gusts as high as 29 mph.

    High: 21 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 14. West wind around 6 mph becoming light and variable.

    Low: 14 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37. South wind 5 to 7 mph.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29. Southeast wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 11. Northwest wind 10 to 17 mph, with gusts as high as 33 mph.
M.L.King Day
Sunny, with a high near 21. Northwest wind 8 to 16 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 14. West wind around 6 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 37. South wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 29. Southeast wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 24.
Thursday
Sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly cloudy, with a high near 39.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 16.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 26.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 7.
Sunday
A 20 percent chance of snow. Mostly sunny and cold, with a high near 20.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
3:16 pm CST Jan 18, 2026
Forecast Valid:
4pm CST Jan 18, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation