Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

79°F

26°C

Humidity 62%
Wind Speed Calm
Barometer 30.01 in (1015.4 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Aug 7:54 pm CDT
Extended Forecast for

Cedar Hill MO

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 7am.  Otherwise, sunny, with a high near 89. Light south wind.

    High: 89 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms after 2am.  Increasing clouds, with a low around 67. Light and variable wind becoming east around 5 mph after midnight.

    Low: 67 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly cloudy, with a high near 85. South wind around 6 mph becoming calm  in the morning.

    High: 85 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 65. Calm wind.  Chance of precipitation is 70%.

    Low: 65 °F

    T-storms
    Likely

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 82.

    High: 82 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. Calm wind.
Tuesday
Patchy fog before 7am. Otherwise, sunny, with a high near 89. Light south wind.
Tuesday Night
A 40 percent chance of showers and thunderstorms after 2am. Increasing clouds, with a low around 67. Light and variable wind becoming east around 5 mph after midnight.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 85. South wind around 6 mph becoming calm in the morning.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 70%.
Thursday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 64.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 83.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 61.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Cedar Hill MO
 38.34°N 90.64°W (Elev. 453 ft)
6:11 pm CDT Aug 17, 2026
8pm CDT Aug 17, 2026-6pm CDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database