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.

Overcast

67°F

19°C

Humidity 91%
Wind Speed SW 12 mph
Barometer 29.71 in (1005.4 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 27 Apr 8:51 pm CDT
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 55. West wind 7 to 10 mph.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 71. Northwest wind around 6 mph becoming northeast in the afternoon.

    High: 71 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 53. North wind 6 to 8 mph. Chance of precipitation is 90%.

    Low: 53 °F

    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. North wind 5 to 9 mph becoming calm after midnight.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 55. West wind 7 to 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 71. Northwest wind around 6 mph becoming northeast in the afternoon.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 53. North wind 6 to 8 mph. Chance of precipitation is 90%.
Wednesday
Mostly sunny, with a high near 66. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 45. North wind 5 to 9 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 52.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
9:06 pm CDT Apr 27, 2026
Forecast Valid:
9pm CDT Apr 27, 2026-6pm CDT May 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