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

68°F

20°C

Humidity 96%
Wind Speed Calm
Barometer 30.03 in (1016.7 mb)
Dewpoint 67°F (19°C)
Visibility 8.00 mi
Last update 14 Oct 9:53 pm CDT
Extended Forecast for

Barnhart MO

  • Tonight

    Tonight: Scattered showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.

    Low: 67 °F

    Cloudy then
    Scattered
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 81. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 1am, then a chance of showers between 1am and 2am. Increasing clouds, with a low around 46. Southwest wind 8 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 57. Northwest wind around 15 mph, with gusts as high as 26 mph.

    High: 57 °F

    Partly Sunny

  • 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
Scattered showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Thursday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 81. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely before 1am, then a chance of showers between 1am and 2am. Increasing clouds, with a low around 46. Southwest wind 8 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 57. Northwest wind around 15 mph, with gusts as high as 26 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:
10:21 pm CDT Oct 14, 2026
Forecast Valid:
10pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation