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.

Overcast

45°F

7°C

Humidity 54%
Wind Speed E 10 mph
Barometer 29.83 in (1010.1 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 26 Feb 1:51 am CST
Extended Forecast for

Saint Louis MO

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 3am. Mostly cloudy, with a low around 36. Northeast wind 7 to 10 mph.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 56. East wind 5 to 7 mph becoming calm in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 38. Light south wind.

    Low: 38 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 73. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. Southwest wind around 6 mph becoming north after midnight.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Partly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: Rain and snow likely, mainly after noon. Cloudy, with a high near 40. Chance of precipitation is 60%.

    High: 40 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Rain and snow, mainly before midnight. Low around 27. Chance of precipitation is 80%.

    Low: 27 °F

    Rain/Snow
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 3am. Mostly cloudy, with a low around 36. Northeast wind 7 to 10 mph.
Thursday
Mostly sunny, with a high near 56. East wind 5 to 7 mph becoming calm in the afternoon.
Thursday Night
Clear, with a low around 38. Light south wind.
Friday
Sunny, with a high near 73. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 43. Southwest wind around 6 mph becoming north after midnight.
Saturday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 65.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 31.
Sunday
Rain and snow likely, mainly after noon. Cloudy, with a high near 40. Chance of precipitation is 60%.
Sunday Night
Rain and snow, mainly before midnight. Low around 27. Chance of precipitation is 80%.
Monday
A chance of rain and snow before noon, then a slight chance of rain. Cloudy, with a high near 41. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 27.
Tuesday
A 40 percent chance of rain. Cloudy, with a high near 44.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 52.
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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:
1:51 am CST Feb 26, 2026
Forecast Valid:
2am CST Feb 26, 2026-6pm CST Mar 4, 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