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.

Light Rain Fog/Mist

48°F

9°C

Humidity 86%
Wind Speed W 13 mph
Barometer 29.84 in (1010.7 mb)
Dewpoint 44°F (7°C)
Visibility 6.00 mi
Wind Chill43°F (6°C)
Last update 13 Jan 8:51 pm CST
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Rain likely before 4am, then a chance of sprinkles between 4am and 5am. Cloudy, with a low around 38. West wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 38 °F

    Rain Likely
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A chance of sprinkles, mixing with flurries after 8am, then gradually ending. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 32 by 5pm. Breezy, with a north wind 15 to 21 mph, with gusts as high as 31 mph.

    High: 40 °F⇓

    Breezy.
    Chance
    Sprinkles/Flurries
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 19. Northwest wind 9 to 14 mph, with gusts as high as 26 mph.

    Low: 19 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 34. Northwest wind 5 to 8 mph becoming south in the afternoon.

    High: 34 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a temperature rising to around 35 by 5am. South wind 5 to 11 mph becoming west after midnight. Winds could gust as high as 22 mph.

    Low: 30 °F⇑

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain likely before 4am, then a chance of sprinkles between 4am and 5am. Cloudy, with a low around 38. West wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Wednesday
A chance of sprinkles, mixing with flurries after 8am, then gradually ending. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 32 by 5pm. Breezy, with a north wind 15 to 21 mph, with gusts as high as 31 mph.
Wednesday Night
Clear, with a low around 19. Northwest wind 9 to 14 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 34. Northwest wind 5 to 8 mph becoming south in the afternoon.
Thursday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a temperature rising to around 35 by 5am. South wind 5 to 11 mph becoming west after midnight. Winds could gust as high as 22 mph.
Friday
Partly sunny, with a high near 45.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 27.
Saturday Night
Partly cloudy, with a low around 12.
Sunday
Mostly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 19.
M.L.King Day
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.26°W (Elev. 499 ft)
Last Update:
8:01 pm CST Jan 13, 2026
Forecast Valid:
9pm CST Jan 13, 2026-6pm CST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation