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

Active Weather Pattern Expected From the Midwest to the Southern Plains; Dangerous Heat Likely in Southern Texas

A strong storm system will bring numerous to widespread severe thunderstorms across portions of the Midwest and Upper Great Lakes Tuesday. Tornadoes (a few strong), damaging winds and large hail are expected. Record high temperatures will be possible over southern Texas the next several days. This may lead to dangerous heat concerns especially for areas already without power. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

80°F

27°C

Humidity 56%
Wind Speed S 13 G 24 mph
Barometer 29.80 in (1007.9 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 21 May 8:51 am CDT
Extended Forecast for

Cool Valley MO

  • Today

    Today: Sunny, with a high near 93. Breezy, with a south wind 11 to 21 mph, with gusts as high as 34 mph.

    High: 93 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am. Low around 65. Breezy, with a south wind 15 to 20 mph becoming west 7 to 12 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%.

    Low: 65 °F

    T-storms and
    Breezy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 78. Northwest wind around 7 mph.

    High: 78 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 64 °F

    T-storms
    Likely then
    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82. Light and variable wind becoming southeast around 6 mph in the morning.

    High: 82 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 93. Breezy, with a south wind 11 to 21 mph, with gusts as high as 34 mph.
Tonight
Showers and thunderstorms, mainly before 2am. Low around 65. Breezy, with a south wind 15 to 20 mph becoming west 7 to 12 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 78. Northwest wind around 7 mph.
Wednesday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82. Light and variable wind becoming southeast around 6 mph in the morning.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Memorial Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Cool Valley MO
 38.73°N 90.28°W (Elev. 499 ft)
Last Update:
6:53 am CDT May 21, 2024
Forecast Valid:
9am CDT May 21, 2024-6pm CDT May 27, 2024
 
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