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.

Partly Cloudy

42°F

6°C

Humidity 71%
Wind Speed N 16 mph
Barometer 30.44 in (1031.0 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 27 Mar 11:53 am CDT
Extended Forecast for

Barnhart MO

Freeze Warning March 28, 01:00am until March 28, 09:00am
Click here for hazard details and duration
Freeze Warning

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 53. North wind 7 to 11 mph, with gusts as high as 23 mph.

    High: 53 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 30. North wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Widespread frost before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 57 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 38. South wind around 6 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 70. South wind 5 to 9 mph.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after 1pm. Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny
    then Slight
    Chance Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 53. North wind 7 to 11 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 30. North wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph.
Saturday
Widespread frost before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming southeast around 6 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 38. South wind around 6 mph.
Sunday
Partly sunny, with a high near 70. South wind 5 to 9 mph.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
A 20 percent chance of rain after 1pm. Partly sunny, with a high near 86.
Tuesday Night
A 40 percent chance of rain and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62.
Wednesday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 76.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Thursday
Rain and thunderstorms likely. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
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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:
12:16 pm CDT Mar 27, 2026
Forecast Valid:
12pm CDT Mar 27, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation