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

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

60°F

16°C

Humidity 84%
Wind Speed SE 9 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 55°F (13°C)
Visibility 7.00 mi
Last update 24 Dec 1:51 pm CST
Extended Forecast for

Cool Valley MO

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 67. Southeast wind around 8 mph.

    High: 67 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 54. South wind 5 to 7 mph becoming light and variable after midnight.

    Low: 54 °F

    Partly Cloudy
    then Patchy
    Fog

  • Christmas Day

    Christmas Day: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 66. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. East wind around 6 mph becoming southwest after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 70. Southwest wind 5 to 10 mph becoming northwest in the afternoon.

    High: 70 °F

    Sunny

  • Friday Night

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

    Low: 47 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °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. Cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Rain Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 67. Southeast wind around 8 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 54. South wind 5 to 7 mph becoming light and variable after midnight.
Christmas Day
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 66. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 57. East wind around 6 mph becoming southwest after midnight.
Friday
Sunny, with a high near 70. Southwest wind 5 to 10 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
A chance of rain and thunderstorms, then rain likely after noon. Cloudy, with a high near 60. Chance of precipitation is 60%.
Sunday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 30.
Monday Night
Mostly clear, with a low around 20.
Tuesday
Mostly sunny, with a high near 35.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cool Valley MO
 38.73°N 90.28°W (Elev. 499 ft)
Last Update:
1:16 pm CST Dec 24, 2025
Forecast Valid:
2pm CST Dec 24, 2025-6pm CST Dec 30, 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