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

25°F

-4°C

Humidity 46%
Wind Speed NE 6 mph
Barometer 30.29 in (1026.9 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 29 Jan 12:51 pm CST
Extended Forecast for

Saint Louis MO

  • This Afternoon

    This Afternoon: A 30 percent chance of snow, mainly after 5pm. Mostly cloudy, with a high near 24. Northeast wind around 7 mph.

    High: 24 °F

    Chance Snow

  • Tonight

    Tonight: Snow likely, mainly before 10pm. Cloudy, with a low around 8. North wind 3 to 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 8 °F

    Snow Likely
    then Slight
    Chance Snow

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny and cold, with a high near 18. Light north wind increasing to 5 to 10 mph in the morning.

    High: 18 °F

    Cold

  • Friday Night

    Friday Night: Cloudy, then gradually becoming partly cloudy, with a low around 5. North wind around 9 mph, with gusts as high as 21 mph.

    Low: 5 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 20. Northwest wind 6 to 10 mph.

    High: 20 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 3.

    Low: 3 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Partly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of snow, mainly after 5pm. Mostly cloudy, with a high near 24. Northeast wind around 7 mph.
Tonight
Snow likely, mainly before 10pm. Cloudy, with a low around 8. North wind 3 to 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Cloudy, then gradually becoming mostly sunny and cold, with a high near 18. Light north wind increasing to 5 to 10 mph in the morning.
Friday Night
Cloudy, then gradually becoming partly cloudy, with a low around 5. North wind around 9 mph, with gusts as high as 21 mph.
Saturday
Mostly sunny and cold, with a high near 20. Northwest wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 3.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 29.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 20.
Monday
Partly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 24.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 35.
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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:
11:07 am CST Jan 29, 2026
Forecast Valid:
1pm CST Jan 29, 2026-6pm CST Feb 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation