Severe Storms in the Upper Midwest; Heavy Rain in the Mid-Atlantic; Widespread Heat in the Southern Plains and Southwest

Severe storms with damaging winds, large hail, and locally heavy rain will impact portions of the northern Plains and Upper Midwest. A stalled front will produce another round of heavy rain, thunderstorms and flooding to the Mid-Atlantic. Excessive heat continues in the southern Plains to the Southwest, and fire weather threats remain critical from the Great Basin to north-central Rockies. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

84°F

29°C

Humidity 67%
Wind Speed E 14 mph
Barometer 29.98 in (1014.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 13 Aug 3:51 pm CDT
Extended Forecast for

Saint Louis MO

Flash Flood Watch until August 13, 07:00pm
Click here for hazard details and duration
Flash Flood Watch
  •  
    Flash Flood Watch until August 13, 07:00pm

    NOW until
    7:00pm Thu

    Flash Flood Watch

  • This
    Afternoon

    This Afternoon: Showers and thunderstorms likely. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a steady temperature around 80. East wind around 7 mph.  Chance of precipitation is 70%.

    Heavy Rain

    High: 80 °F

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 10pm. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 70. East wind 5 to 7 mph becoming calm  in the evening.

    Heavy Rain
    then Mostly
    Cloudy

    Low: 70 °F

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 88. Northeast wind 3 to 7 mph.

    Patchy Fog
    then Chance
    T-storms

    High: 88 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 69. Northeast wind 5 to 7 mph becoming calm  in the evening.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 69 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Northwest wind 3 to 7 mph.

    Mostly Sunny

    High: 88 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 67.

    Partly Cloudy

    Low: 67 °F

  • Sunday

    Sunday: Sunny, with a high near 84.

    Sunny

    High: 84 °F

  • Sunday
    Night

    Sunday Night: Clear, with a low around 64.

    Clear

    Low: 64 °F

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Some of the storms could produce heavy rainfall. Mostly cloudy, with a steady temperature around 80. East wind around 7 mph. Chance of precipitation is 70%.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 10pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. East wind 5 to 7 mph becoming calm in the evening.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Northeast wind 3 to 7 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Northeast wind 5 to 7 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 88. Northwest wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Sunny, with a high near 84.
Sunday Night
Clear, with a low around 64.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 83.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
2:42 pm CDT Aug 13, 2020
4pm CDT Aug 13, 2020-6pm CDT Aug 20, 2020
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database