National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

74°F

23°C

Humidity 19%
Wind Speed W 15 G 23 mph
Barometer 29.84 in (1010.3 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 27 Feb 4:51 pm CST
Extended Forecast for

Lambert-St. Louis International Airport MO

Red Flag Warning February 27, 05:47pm until February 27, 06:00pm
Click here for hazard details and duration
...
  •  
    Red Flag Warning February 27, 05:47pm until February 27, 06:00pm

    NOW until 6:00pm Fri

    Red Flag Warning

  • Tonight

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of rain between 2pm and 5pm. Mostly sunny, with a high near 65. Northeast wind 7 to 10 mph becoming south in the afternoon. Chance of precipitation is 20%.

    High: 65 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. Southwest wind 6 to 13 mph becoming north after midnight. Winds could gust as high as 22 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of rain after noon, mixing with snow after 3pm. Increasing clouds, with a high near 45. Northeast wind around 11 mph. Chance of precipitation is 20%.

    High: 45 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow. Low around 33. East wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow

  • Monday

    Monday: A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.

    High: 46 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Monday Night

    Monday Night: Rain likely, mainly after midnight. Cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm. High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 37. Southwest wind 6 to 8 mph becoming northeast after midnight.
Saturday
A slight chance of rain between 2pm and 5pm. Mostly sunny, with a high near 65. Northeast wind 7 to 10 mph becoming south in the afternoon. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 31. Southwest wind 6 to 13 mph becoming north after midnight. Winds could gust as high as 22 mph.
Sunday
A slight chance of rain after noon, mixing with snow after 3pm. Increasing clouds, with a high near 45. Northeast wind around 11 mph. Chance of precipitation is 20%.
Sunday Night
Rain and snow. Low around 33. East wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
Monday Night
Rain likely, mainly after midnight. Cloudy, with a low around 39. Chance of precipitation is 70%.
Tuesday
Rain and possibly a thunderstorm. High near 58. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 46. Chance of precipitation is 80%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 63. Chance of precipitation is 70%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Thursday
Rain likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 51.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
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Forecast Area
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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:
5:06 pm CST Feb 27, 2026
Forecast Valid:
5pm CST Feb 27, 2026-6pm CST Mar 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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