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.

Fair

37°F

3°C

Humidity 86%
Wind Speed Calm
Barometer 29.94 in (1014.0 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 27 Feb 3:51 am CST
Extended Forecast for

Saint Louis MO

Red Flag Warning February 27, 12:00pm until February 27, 06:00pm
Click here for hazard details and duration
Red Flag Warning

  • Today

    Today: Sunny, with a high near 72. Southwest wind 5 to 14 mph, with gusts as high as 24 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. Southwest wind 5 to 8 mph becoming northeast after midnight.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain. Mostly sunny, with a high near 66. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 66 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. North wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 46. East wind around 10 mph.

    High: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Rain and snow. Low around 33. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 33 °F

    Rain/Snow

  • Monday

    Monday: A chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.

    High: 44 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: A 50 percent chance of rain. Cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 53. Chance of precipitation is 80%.

    High: 53 °F

    Rain

Detailed Forecast

Today
Sunny, with a high near 72. Southwest wind 5 to 14 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 42. Southwest wind 5 to 8 mph becoming northeast after midnight.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 66. Light and variable wind becoming south 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 31. North wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 46. East wind around 10 mph.
Sunday Night
Rain and snow. Low around 33. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
Monday Night
A 50 percent chance of rain. Cloudy, with a low around 36.
Tuesday
Rain. High near 53. Chance of precipitation is 80%.
Tuesday Night
Rain likely, with thunderstorms also possible after midnight. Cloudy, with a low around 43. Chance of precipitation is 70%.
Wednesday
Rain likely. Cloudy, with a high near 63. Chance of precipitation is 60%.
Wednesday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 52. Chance of precipitation is 70%.
Thursday
Rain likely. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.26°W (Elev. 499 ft)
Last Update:
3:31 am CST Feb 27, 2026
Forecast Valid:
4am CST Feb 27, 2026-6pm CST Mar 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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