National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

69°F

21°C

Humidity 96%
Wind Speed Calm
Barometer 30.02 in (1016.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 14 Oct 8:53 pm CDT
Extended Forecast for

Barnhart MO

  • Tonight

    Tonight: Isolated showers between 2am and 3am, then scattered showers and thunderstorms after 3am. Cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.

    Low: 67 °F

    Cloudy then
    Scattered
    Showers

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 1pm. High near 85. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 80%.

    High: 85 °F

    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Northwest wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Low: 48 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 57. Northwest wind around 15 mph, with gusts as high as 29 mph.

    High: 57 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Isolated showers between 2am and 3am, then scattered showers and thunderstorms after 3am. Cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Thursday
Showers and thunderstorms, mainly before 1pm. High near 85. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Northwest wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Friday
Mostly cloudy, with a high near 57. Northwest wind around 15 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, with a low around 40. Northwest wind 7 to 13 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 61.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Barnhart MO
 38.34°N 90.41°W (Elev. 597 ft)
Last Update:
8:25 pm CDT Oct 14, 2026
Forecast Valid:
9pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation