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

54°F

12°C

Humidity 31%
Wind Speed SE 13 mph
Barometer 30.24 in (1024.4 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 12 Feb 12:51 pm CST
Extended Forecast for

Saint Louis MO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 54. Southeast wind around 9 mph.

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Southeast wind 3 to 7 mph.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 60. South wind 5 to 8 mph.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 40. Southeast wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain, mainly after noon. High near 52. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 80%.

    High: 52 °F

    Chance Rain
    then Rain

  • Saturday Night

    Saturday Night: Rain. Low around 45. Chance of precipitation is 90%.

    Low: 45 °F

    Rain

  • Sunday

    Sunday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Rain then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 54. Southeast wind around 9 mph.
Tonight
Partly cloudy, with a low around 34. Southeast wind 3 to 7 mph.
Friday
Sunny, with a high near 60. South wind 5 to 8 mph.
Friday Night
Increasing clouds, with a low around 40. Southeast wind around 5 mph becoming calm in the evening.
Saturday
Rain, mainly after noon. High near 52. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 80%.
Saturday Night
Rain. Low around 45. Chance of precipitation is 90%.
Sunday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 39.
Washington's Birthday
Mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 46.
Tuesday
Mostly cloudy, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 57.
Wednesday
Partly sunny, with a high near 71.
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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:
1:41 pm CST Feb 12, 2026
Forecast Valid:
1pm CST Feb 12, 2026-6pm CST Feb 18, 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