Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.
National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Heat Continues in the Southwest on Monday

A cold front will bring relief to the Pacific Northwest on Monday, but the Southwest will see above average temperatures again. Excessive Heat Warnings are in effect for many locations through Monday evening. The hottest temperatures will be in the desert as daytime high temperatures may exceed 115 degrees. Read More >

Current conditions at

St. Louis, Lambert-St. Louis International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

61°F

16°C

Humidity 70%
Wind Speed W 3 mph
Barometer 30.22 in (1022.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 26 Jun 4:51 am CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Today

    Today: Isolated showers between 3pm and 4pm, then scattered showers and thunderstorms after 4pm. Increasing clouds, with a high near 83. West wind 3 to 6 mph. Chance of precipitation is 40%.

    Sunny then
    Scattered
    Showers

    High: 83 °F

  • Tonight

    Tonight: Scattered showers and thunderstorms before 7pm, then isolated showers between 7pm and 11pm. Cloudy during the early evening, then gradual clearing, with a low around 56. Northeast wind 5 to 7 mph. Chance of precipitation is 30%.

    Scattered
    Showers then
    Partly Cloudy

    Low: 56 °F

  • Tuesday

    Tuesday: Sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.

    Sunny

    High: 81 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 65. Southeast wind around 6 mph.

    Mostly Clear

    Low: 65 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. South wind 6 to 15 mph, with gusts as high as 23 mph.

    Mostly Sunny

    High: 88 °F

  • Wednesday
    Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    Low: 74 °F

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.

    Chance
    T-storms then
    T-storms
    Likely

    High: 88 °F

  • Thursday
    Night

    Thursday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 72 °F

  • Friday

    Friday: Showers and thunderstorms likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.

    T-storms
    Likely

    High: 85 °F

Detailed Forecast

Today
Isolated showers between 3pm and 4pm, then scattered showers and thunderstorms after 4pm. Increasing clouds, with a high near 83. West wind 3 to 6 mph. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms before 7pm, then isolated showers between 7pm and 11pm. Cloudy during the early evening, then gradual clearing, with a low around 56. Northeast wind 5 to 7 mph. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 65. Southeast wind around 6 mph.
Wednesday
Mostly sunny, with a high near 88. South wind 6 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74.
Thursday
Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
2:57 am CDT Jun 26, 2017
Forecast Valid:
5am CDT Jun 26, 2017-6pm CDT Jul 2, 2017
 
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