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

50°F

10°C

Humidity 71%
Wind Speed N 3 mph
Barometer 29.89 in (1012.3 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 8 Nov 8:53 am CST
Extended Forecast for

Barnhart MO

  • Today

    Today: A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 68. Calm wind becoming south around 6 mph in the afternoon.

    High: 68 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tonight

    Tonight: A 20 percent chance of rain before 9pm. Increasing clouds, with a low around 35. Southwest wind 6 to 16 mph becoming northwest after midnight. Winds could gust as high as 28 mph.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of sprinkles and flurries before 5pm, then a chance of flurries. Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind 13 to 16 mph, with gusts as high as 28 mph.

    High: 41 °F

    Chance
    Sprinkles/Flurries

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24. Northwest wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 40. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 68. Calm wind becoming south around 6 mph in the afternoon.
Tonight
A 20 percent chance of rain before 9pm. Increasing clouds, with a low around 35. Southwest wind 6 to 16 mph becoming northwest after midnight. Winds could gust as high as 28 mph.
Sunday
A chance of sprinkles and flurries before 5pm, then a chance of flurries. Mostly cloudy, then gradually becoming sunny, with a high near 41. Northwest wind 13 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 24. Northwest wind 8 to 11 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 40. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 25.
Veterans Day
Partly sunny, with a high near 57.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Barnhart MO
 38.34°N 90.39°W (Elev. 587 ft)
Last Update:
8:46 am CST Nov 8, 2025
Forecast Valid:
9am CST Nov 8, 2025-6pm CST Nov 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation