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

62°F

17°C

Humidity 40%
Wind Speed SE 5 mph
Barometer 29.96 in (1014.8 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 28 Feb 4:51 pm CST
Extended Forecast for

Saint Louis MO

  • This Afternoon

    This Afternoon: A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 65. South wind around 6 mph.

    High: 65 °F

    Chance Rain

  • Tonight

    Tonight: A 20 percent chance of rain and thunderstorms before 7pm. Partly cloudy, with a low around 33. North wind 5 to 13 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 47. Northeast wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 47 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Rain likely before 9pm, then rain and snow likely. Cloudy, with a low around 34. East wind around 8 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely

  • Monday

    Monday: Rain likely, mainly before noon. Cloudy, with a high near 45. East wind 7 to 9 mph. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain. Low around 40. 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

Detailed Forecast

This Afternoon
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 65. South wind around 6 mph.
Tonight
A 20 percent chance of rain and thunderstorms before 7pm. Partly cloudy, with a low around 33. North wind 5 to 13 mph, with gusts as high as 21 mph.
Sunday
Partly sunny, with a high near 47. Northeast wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Rain likely before 9pm, then rain and snow likely. Cloudy, with a low around 34. East wind around 8 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday
Rain likely, mainly before noon. Cloudy, with a high near 45. East wind 7 to 9 mph. Chance of precipitation is 60%.
Monday Night
Rain. Low around 40. 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 90.26°W (Elev. 499 ft)
Last Update:
4:36 pm CST Feb 28, 2026
Forecast Valid:
5pm 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