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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.

Partly Cloudy

101°F

38°C

Humidity 31%
Wind Speed W 16 G 21 mph
Barometer 30.02 in (1014.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 20 Jul 2:51 pm 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

  • This
    Afternoon

    This Afternoon: Sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind around 6 mph.

    Hot

    High: 104 °F

  • Tonight

    Tonight: Mostly clear, with a low around 82. Southwest wind around 6 mph becoming calm  in the evening.

    Mostly Clear

    Low: 82 °F

  • Friday

    Friday: Sunny and hot, with a high near 104. Heat index values as high as 112. Calm wind becoming south around 6 mph in the afternoon.

    Hot

    High: 104 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 80. South wind 5 to 7 mph.

    Mostly Clear

    Low: 80 °F

  • Saturday

    Saturday: Sunny and hot, with a high near 105. Southwest wind 5 to 8 mph.

    Hot

    High: 105 °F

  • Saturday
    Night

    Saturday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 78.

    Chance
    T-storms

    Low: 78 °F

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 96.

    Partly Sunny
    then Chance
    T-storms

    High: 96 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 72.

    Chance
    T-storms

    Low: 72 °F

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind around 6 mph.
Tonight
Mostly clear, with a low around 82. Southwest wind around 6 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 104. Heat index values as high as 112. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 80. South wind 5 to 7 mph.
Saturday
Sunny and hot, with a high near 105. Southwest wind 5 to 8 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Sunday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 96.
Sunday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72.
Monday
Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
Mostly sunny, with a high near 93.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.62°N 90.23°W (Elev. 489 ft)
12:56 pm CDT Jul 20, 2017
3pm CDT Jul 20, 2017-6pm CDT Jul 27, 2017
 
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