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Severe thunderstorms possible over the upper Midwest and Great Lakes, Heavy Rain and Flooding Possible over the Southwest U.S.

Severe thunderstorms will be possible over portions of the upper Midwest and Great Lakes Tuesday, Wednesday, and Thursday. Damaging winds, large hail, and heavy rainfall possible. Over the Desert Southwest and portions of the Rockies, Monsoonal moisture will lead to locally heavy rainfall and the threat for flash flooding into midweek. Read More >

Current conditions at

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

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

88°F

31°C

Humidity 55%
Wind Speed Vrbl 6 mph
Barometer 30.10 in (1018.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 25 Jul 11:51 am CDT
Extended Forecast for

Saint Louis MO

Heat Advisory July 26, 12:00pm until July 26, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 91. East wind around 7 mph.

    Mostly Sunny

    High: 91 °F

  • Tonight

    Tonight: Mostly clear, with a low around 76. East wind 5 to 7 mph becoming calm  after midnight.

    Mostly Clear

    Low: 76 °F

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 99. Heat index values as high as 108. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.

    Hot

    High: 99 °F

  • Wednesday
    Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 78. South wind around 6 mph.

    Mostly Cloudy
    then Chance
    T-storms

    Low: 78 °F

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 91. West wind 5 to 7 mph.

    Chance
    T-storms

    High: 91 °F

  • Thursday
    Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 70.

    Chance
    T-storms

    Low: 70 °F

  • Friday

    Friday: Mostly sunny, with a high near 86.

    Mostly Sunny

    High: 86 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 65.

    Partly Cloudy

    Low: 65 °F

  • Saturday

    Saturday: Sunny, with a high near 85.

    Sunny

    High: 85 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 91. East wind around 7 mph.
Tonight
Mostly clear, with a low around 76. East wind 5 to 7 mph becoming calm after midnight.
Wednesday
Mostly sunny and hot, with a high near 99. Heat index values as high as 108. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.
Wednesday Night
A 50 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 78. South wind around 6 mph.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 91. West wind 5 to 7 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70.
Friday
Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 66.
Monday
Mostly sunny, with a high near 88.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.62°N 90.23°W (Elev. 489 ft)
9:57 am CDT Jul 25, 2017
12pm CDT Jul 25, 2017-6pm CDT Jul 31, 2017
 
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