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.

Fog/Mist

64°F

18°C

Humidity 84%
Wind Speed SW 5 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 24 Dec 9:53 pm CST
Extended Forecast for

Barnhart MO

  • Tonight

    Tonight: Patchy fog. Otherwise, partly cloudy, with a low around 55. Southwest wind 3 to 6 mph.

    Low: 55 °F

    Patchy Fog

  • Christmas Day

    Christmas Day: Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 72. Light and variable wind.

    High: 72 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 58. Light and variable wind becoming south around 6 mph in the evening.

    Low: 58 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 73. West wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms, then rain likely after noon. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Patchy fog. Otherwise, partly cloudy, with a low around 55. Southwest wind 3 to 6 mph.
Christmas Day
Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 72. Light and variable wind.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 58. Light and variable wind becoming south around 6 mph in the evening.
Friday
Sunny, with a high near 73. West wind 5 to 7 mph becoming light and variable in the afternoon.
Friday Night
Partly cloudy, with a low around 47. Calm wind.
Saturday
Partly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
A chance of rain and thunderstorms, then rain likely after noon. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Mostly sunny, with a high near 37.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Barnhart MO
 38.34°N 90.41°W (Elev. 597 ft)
Last Update:
9:31 pm CST Dec 24, 2025
Forecast Valid:
11pm CST Dec 24, 2025-6pm CST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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