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Severe Thunderstorms With Heavy Rain Possible In The Upper Midwest; Excessive Heat For Central U.S.

Several rounds of strong to severe thunderstorms will be possible from the northern Plains and upper Midwest to the Great Lakes through Friday. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat will grip the central Plains with heat indices approaching 105 to 110 degrees. Very hot and humid conditions are likely to expand into the Mid Atlantic. Read More >

Current conditions at

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

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Fair

85°F

29°C

Humidity 65%
Wind Speed SW 6 mph
Barometer 29.97 in (1013.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 21 Jul 3:51 am CDT
Extended Forecast for

Saint Louis MO

Excessive Heat Warning until July 22, 08:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 22, 08:00pm

    NOW until
    8:00pm Sat

    Excessive Heat Warning

  • Overnight

    Overnight: Clear, with a low around 82. Calm wind.

    Clear

    Low: 82 °F

  • Friday

    Friday: Sunny and hot, with a high near 106. Heat index values as high as 116. Calm wind becoming southwest around 5 mph in the afternoon.

    Hot

    High: 106 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 80. South wind around 6 mph.

    Mostly Clear

    Low: 80 °F

  • Saturday

    Saturday: Sunny and hot, with a high near 107. Heat index values as high as 116. Southwest wind 5 to 8 mph.

    Hot

    High: 107 °F

  • Saturday
    Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 8pm.  Partly cloudy, with a low around 78. Southwest wind 5 to 7 mph.

    Chance
    T-storms

    Low: 78 °F

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 95.

    Chance
    T-storms

    High: 95 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 72.

    Chance
    T-storms

    Low: 72 °F

  • Monday

    Monday: Sunny, with a high near 90.

    Sunny

    High: 90 °F

Detailed Forecast

Overnight
Clear, with a low around 82. Calm wind.
Friday
Sunny and hot, with a high near 106. Heat index values as high as 116. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 80. South wind around 6 mph.
Saturday
Sunny and hot, with a high near 107. Heat index values as high as 116. Southwest wind 5 to 8 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 78. Southwest wind 5 to 7 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 95.
Sunday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 72.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
Mostly sunny, with a high near 96.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
2:12 am CDT Jul 21, 2017
4am CDT Jul 21, 2017-6pm CDT Jul 27, 2017
 
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