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NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

71°F

22°C

Humidity 81%
Wind Speed E 3 mph
Barometer 29.91 in (1011.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 30 May 2:51 am CDT
Extended Forecast for

Cool Valley MO

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Light east wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 65. East wind 7 to 9 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 11am. Mostly cloudy, with a high near 82. Southeast wind around 8 mph.

    High: 82 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 65. East wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a low around 67. Calm wind.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Light east wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 65. East wind 7 to 9 mph. Chance of precipitation is 20%.
Sunday
A 30 percent chance of showers, mainly before 11am. Mostly cloudy, with a high near 82. Southeast wind around 8 mph.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 65. East wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 70%.
Monday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 67.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cool Valley MO
 38.73°N 90.31°W (Elev. 584 ft)
Last Update:
1:26 am CDT May 30, 2026
Forecast Valid:
3am CDT May 30, 2026-6pm CDT Jun 5, 2026
 
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