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.

Mostly Cloudy

42°F

6°C

Humidity 55%
Wind Speed Calm
Barometer 30.14 in (1021.5 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 12 Jan 7:51 pm CST
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Tonight

    Tonight: Mostly clear, with a low around 41. Light west wind becoming southwest 5 to 9 mph in the evening. Winds could gust as high as 22 mph.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 61. West wind 9 to 14 mph, with gusts as high as 28 mph.

    High: 61 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly between 7pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 36. West wind 8 to 14 mph, with gusts as high as 24 mph.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a temperature rising to near 40 by 10am, then falling to around 32 during the remainder of the day. Breezy, with a northwest wind 14 to 21 mph, with gusts as high as 34 mph.

    High: 40 °F⇓

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 17. North wind 10 to 16 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain and snow after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 20%.

    High: 42 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 41. Light west wind becoming southwest 5 to 9 mph in the evening. Winds could gust as high as 22 mph.
Tuesday
Increasing clouds, with a high near 61. West wind 9 to 14 mph, with gusts as high as 28 mph.
Tuesday Night
A 30 percent chance of rain, mainly between 7pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 36. West wind 8 to 14 mph, with gusts as high as 24 mph.
Wednesday
Partly sunny, with a temperature rising to near 40 by 10am, then falling to around 32 during the remainder of the day. Breezy, with a northwest wind 14 to 21 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly clear, with a low around 17. North wind 10 to 16 mph, with gusts as high as 26 mph.
Thursday
Mostly sunny, with a high near 32.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
A slight chance of rain and snow after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 28.
Saturday Night
Partly cloudy, with a low around 10.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Mostly clear, with a low around 15.
M.L.King Day
Mostly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
8:26 pm CST Jan 12, 2026
Forecast Valid:
8pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
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Additional Resources

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Chance of Precipitation