Rain Continues in the Southeast; Colder Temperatures and Wet Weather in the Northwest

Tropical moisture will bring locally heavy rainfall and flash flooding to the Southeast. Heavy rain, cooler temperatures, and possibly high elevation snow will continue in the Pacific Northwest and extend into the Northern Rockies. Elevated fire weather conditions will impact portions of the Great Basin and the north-central Plains. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

75°F

24°C

Humidity 76%
Wind Speed Calm
Barometer 30.07 in (1017.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 Sep 3:51 am CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Today

    Today: Isolated showers and thunderstorms after 3pm.  Increasing clouds, with a high near 89. Light southeast wind increasing to 6 to 11 mph in the morning.  Chance of precipitation is 20%.

    Mostly Sunny
    then Isolated
    T-storms

    High: 89 °F

  • Tonight

    Tonight: Isolated showers and thunderstorms.  Mostly cloudy, with a low around 75. Southeast wind 8 to 10 mph.  Chance of precipitation is 20%.

    Isolated
    T-storms then
    Isolated
    Showers

    Low: 75 °F

  • Monday

    Monday: Isolated showers before 9am.  Partly sunny, with a high near 89. South wind 8 to 10 mph.  Chance of precipitation is 20%.

    Isolated
    Showers then
    Mostly Sunny

    High: 89 °F

  • Monday
    Night

    Monday Night: A slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am.  Increasing clouds, with a low around 66. South wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 70%.

    Slight Chance
    T-storms then
    Showers
    Likely

    Low: 66 °F

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of rain after 1pm.  Mostly cloudy, with a high near 73. Northwest wind 6 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%.

    Chance
    Showers

    High: 73 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Partly Cloudy

    Low: 58 °F

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    Sunny

    High: 72 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 56.

    Mostly Clear

    Low: 56 °F

  • Thursday

    Thursday: Sunny, with a high near 73.

    Sunny

    High: 73 °F

Detailed Forecast

Today
Isolated showers and thunderstorms after 3pm. Increasing clouds, with a high near 89. Light southeast wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms. Mostly cloudy, with a low around 75. Southeast wind 8 to 10 mph. Chance of precipitation is 20%.
Monday
Isolated showers before 9am. Partly sunny, with a high near 89. South wind 8 to 10 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 66. South wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Tuesday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of rain after 1pm. Mostly cloudy, with a high near 73. Northwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Sunny, with a high near 78.
Click Map For Forecast
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
3:55 am CDT Sep 19, 2021
4am CDT Sep 19, 2021-6pm CDT Sep 25, 2021
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database