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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Rain Fog/Mist

68°F

20°C

Humidity 93%
Wind Speed S 5 mph
Barometer 29.98 in (1015.0 mb)
Dewpoint 66°F (19°C)
Visibility 3.00 mi
Last update 16 Jun 8:53 am CDT
Extended Forecast for

Barnhart MO

  • Today

    Today: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 82. Calm wind becoming southeast around 5 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 90 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 6 mph.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 88. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Juneteenth

    Juneteenth: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 82. Calm wind becoming southeast around 5 mph. Chance of precipitation is 40%.
Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. Calm wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South wind around 6 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 88. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Wednesday Night
A 50 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68.
Juneteenth
Sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Sunny, with a high near 95.
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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:
7:52 am CDT Jun 16, 2025
Forecast Valid:
9am CDT Jun 16, 2025-6pm CDT Jun 22, 2025
 
Forecast Discussion
 
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Additional Resources

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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