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

56°F

13°C

Humidity 51%
Wind Speed W 8 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 7 Jan 10:53 am CST
Extended Forecast for

Barnhart MO

  • Today

    Today: Mostly sunny, with a high near 65. Calm wind becoming south around 6 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 46. Southeast wind 5 to 7 mph.

    Low: 46 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain, mainly after 5pm. High near 66. South wind 7 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.

    High: 66 °F

    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South wind 6 to 11 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.

    Low: 51 °F

    Rain Likely
    then Slight
    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 62. West wind around 6 mph becoming north in the afternoon.

    High: 62 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Saturday

    Saturday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 65. Calm wind becoming south around 6 mph in the afternoon.
Tonight
Increasing clouds, with a low around 46. Southeast wind 5 to 7 mph.
Thursday
Rain, mainly after 5pm. High near 66. South wind 7 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.
Thursday Night
Rain likely, mainly before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 51. South wind 6 to 11 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 62. West wind around 6 mph becoming north in the afternoon.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Saturday
Partly sunny, with a high near 47.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Sunny, with a high near 37.
Sunday Night
Mostly clear, with a low around 22.
Monday
Sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 31.
Tuesday
Mostly sunny, with a high near 53.
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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:
8:26 am CST Jan 7, 2026
Forecast Valid:
10am CST Jan 7, 2026-6pm CST Jan 13, 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