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

25°F

-4°C

Humidity 55%
Wind Speed S 8 mph
Barometer 30.16 in (1022.5 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 24 Feb 3:51 am CST
Extended Forecast for

Cool Valley MO

  • Today

    Today: Increasing clouds, with a high near 58. South wind 10 to 18 mph, with gusts as high as 33 mph.

    High: 58 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Southwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 53. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 53 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 38. East wind 5 to 7 mph. Chance of precipitation is 60%.

    Low: 38 °F

    Rain Likely

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Partly sunny, with a high near 51. East wind 6 to 8 mph becoming northwest in the afternoon.

    High: 51 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 58. South wind 10 to 18 mph, with gusts as high as 33 mph.
Tonight
Mostly cloudy, with a low around 36. Southwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.
Wednesday
Partly sunny, with a high near 53. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 38. East wind 5 to 7 mph. Chance of precipitation is 60%.
Thursday
A 20 percent chance of rain before noon. Partly sunny, with a high near 51. East wind 6 to 8 mph becoming northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
A chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 49. Chance of precipitation is 40%.
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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:
4:15 am CST Feb 24, 2026
Forecast Valid:
4am CST Feb 24, 2026-6pm CST Mar 2, 2026
 
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