Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

72°F

22°C

Humidity 87%
Wind Speed Calm
Barometer 30.07 in (1018.0 mb)
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Last update 5 Aug 7:53 am CDT
Extended Forecast for

Barnhart MO

Flood Watch August 5, 10:00pm until August 6, 10:00am
Click here for hazard details and duration
Flood Watch
  • Today

    Today: Mostly sunny, with a high near 91. South wind 3 to 5 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms, mainly after 3am. Some of the storms could produce heavy rainfall.  Low around 70. Light and variable wind.  Chance of precipitation is 80%.

    Low: 70 °F

    Scattered
    T-storms then
    Heavy Rain

  • Thursday

    Thursday: Showers and thunderstorms before 3pm, then isolated showers and thunderstorms after 5pm. Some of the storms could produce heavy rainfall.  High near 85. Calm wind becoming southwest around 5 mph.  Chance of precipitation is 80%.

    High: 85 °F

    Heavy Rain
    then
    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly after 1am.  Mostly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 70%.

    Low: 70 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 1pm.  Partly sunny, with a high near 86. Light southwest wind.  Chance of precipitation is 60%.

    High: 86 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 91. South wind 3 to 5 mph.
Tonight
Showers and thunderstorms, mainly after 3am. Some of the storms could produce heavy rainfall. Low around 70. Light and variable wind. Chance of precipitation is 80%.
Thursday
Showers and thunderstorms before 3pm, then isolated showers and thunderstorms after 5pm. Some of the storms could produce heavy rainfall. High near 85. Calm wind becoming southwest around 5 mph. Chance of precipitation is 80%.
Thursday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 70%.
Friday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 86. Light southwest wind. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Mostly sunny, with a high near 94.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Barnhart MO
 38.34°N 90.41°W (Elev. 597 ft)
5:51 am CDT Aug 5, 2026
8am CDT Aug 5, 2026-6pm CDT Aug 11, 2026
 
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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