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.

Fair

40°F

4°C

Humidity 55%
Wind Speed NE 15 G 21 mph
Barometer 30.18 in (1022.2 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 28 Feb 10:51 pm CST
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Mostly clear, with a low around 30. North wind 10 to 13 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 49. Northeast wind around 11 mph.

    High: 49 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Rain and snow, becoming all rain after 3am. Low around 35. East wind around 10 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow

  • Monday

    Monday: A 50 percent chance of rain, mainly before noon. Cloudy, with a high near 45. East wind 7 to 9 mph.

    High: 45 °F

    Chance Rain
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain. Low around 40. Southeast wind around 7 mph. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm. High near 65. Chance of precipitation is 80%.

    High: 65 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 30. North wind 10 to 13 mph.
Sunday
Increasing clouds, with a high near 49. Northeast wind around 11 mph.
Sunday Night
Rain and snow, becoming all rain after 3am. Low around 35. East wind around 10 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Monday
A 50 percent chance of rain, mainly before noon. Cloudy, with a high near 45. East wind 7 to 9 mph.
Monday Night
Rain. Low around 40. Southeast wind around 7 mph. Chance of precipitation is 80%.
Tuesday
Rain and possibly a thunderstorm. High near 65. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Thursday
Rain likely. Partly sunny, with a high near 71. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of rain and thunderstorms. Partly cloudy, with a low around 57.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Saturday
Rain likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
10:01 pm CST Feb 28, 2026
Forecast Valid:
11pm CST Feb 28, 2026-6pm CST Mar 7, 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