Severe Storms and Flash Flooding in the Midwest: Critical Fire Weather Threats in the West

Strong to severe storms with damaging winds, large hail, and locally heavy rain will be possible from the Central Plains to the Mid-South and the Great Lakes as a cold front moves eastward. An organized area of thunderstorms may produce a greater severe threat, including a derecho with winds up to 100 mph across parts of Iowa, Illinois, and southern Wisconsin. Read More >

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Mostly Cloudy

88°F

31°C

Humidity 75%
Wind Speed S 3 mph
Barometer 29.89 in (1011.1 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 10 Aug 4:54 pm CDT
Extended Forecast for

Chesterfield MO

Severe T-storm Watch until August 10, 10:00pm
Heat Advisory until August 10, 07:00pm
Click here for hazard details and duration
Severe T-storm Watch
Heat Advisory
  •  
    Severe T-storm Watch until August 10, 10:00pm
    Heat Advisory until August 10, 07:00pm

    NOW: Multiple
    hazards in effect

    Click HERE for Details

  • This
    Afternoon

    This Afternoon: Scattered showers and thunderstorms. Some storms could be severe, with large hail and damaging winds.  Mostly sunny, with a high near 96. Heat index values as high as 105. West wind around 7 mph.  Chance of precipitation is 30%.

    Severe
    Thunderstorms

    High: 96 °F

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly between 10pm and 3am. Some storms could be severe, with large hail and damaging winds.  Mostly cloudy, with a low around 72. Southwest wind around 6 mph.  Chance of precipitation is 60%.

    Severe
    Thunderstorms

    Low: 72 °F

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 85. West wind around 6 mph.

    Chance
    T-storms

    High: 85 °F

  • Tuesday
    Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70. Light east wind.

    Slight Chance
    T-storms

    Low: 70 °F

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 89. East wind 3 to 6 mph.

    Chance
    T-storms

    High: 89 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 71.

    Partly Cloudy

    Low: 71 °F

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 90.

    Chance
    T-storms

    High: 90 °F

  • Thursday
    Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 71.

    Chance
    T-storms

    Low: 71 °F

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Some storms could be severe, with large hail and damaging winds. Mostly sunny, with a high near 96. Heat index values as high as 105. West wind around 7 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely, mainly between 10pm and 3am. Some storms could be severe, with large hail and damaging winds. Mostly cloudy, with a low around 72. Southwest wind around 6 mph. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85. West wind around 6 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light east wind.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. East wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 71.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 67.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Click Map For Forecast
Point Forecast:
Chesterfield MO
 38.65°N 90.57°W (Elev. 512 ft)
3:28 pm CDT Aug 10, 2020
5pm CDT Aug 10, 2020-6pm CDT Aug 17, 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