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

33°F

1°C

Humidity 38%
Wind Speed S 10 mph
Barometer 29.80 in (1010.5 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 15 Jan 9:51 pm CST
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: A 20 percent chance of snow before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 29. South wind around 9 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: A chance of sprinkles before 4pm, then a slight chance of rain between 4pm and 5pm, then a slight chance of snow after 5pm. Mostly cloudy, with a high near 45. West wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 45 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 22. West wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 22 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 27. West wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 27 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 13. Northwest wind 6 to 9 mph.

    Low: 13 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 24.

    High: 24 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of snow before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 29. South wind around 9 mph, with gusts as high as 20 mph.
Friday
A chance of sprinkles before 4pm, then a slight chance of rain between 4pm and 5pm, then a slight chance of snow after 5pm. Mostly cloudy, with a high near 45. West wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 22. West wind 11 to 14 mph, with gusts as high as 23 mph.
Saturday
Partly sunny, with a high near 27. West wind 10 to 13 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 13. Northwest wind 6 to 9 mph.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 15.
M.L.King Day
Sunny, with a high near 24.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Sunny, with a high near 36.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 42.
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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:
9:41 pm CST Jan 15, 2026
Forecast Valid:
10pm CST Jan 15, 2026-6pm CST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation