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 >

7-Day Forecast 38.51°N 90.32°W (Text-Only)
NWS Forecast for: Mehlville MO
Issued by: National Weather Service Saint Louis, MO
Last Update: 6:11 pm CDT Jun 9, 2026
Print


  • Tonight

    Tonight: Mostly clear, with a low around 74. South wind 3 to 5 mph.

    Low: 74 °F

    Mostly Clear



  • Wednesday

    Wednesday: Sunny, with a high near 95. Heat index values as high as 104. Southwest wind 5 to 9 mph, with gusts as high as 20 mph.

    High: 95 °F

    Sunny



  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 76. South wind 6 to 9 mph.

    Low: 76 °F

    Mostly Clear



  • Thursday

    Thursday: Sunny, with a high near 94. Heat index values as high as 105. South wind 6 to 13 mph, with gusts as high as 25 mph.

    High: 94 °F

    Sunny



  • Thursday
    Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am.  Low around 68. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 22 mph.  Chance of precipitation is 80%.

    Low: 68 °F

    Showers



  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny



  • Friday
    Night

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

    Low: 65 °F

    Mostly Clear



  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms


  • Saturday
    Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Partly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tonight: Mostly clear, with a low around 74. South wind 3 to 5 mph.

    Wednesday: Sunny, with a high near 95. Heat index values as high as 104. Southwest wind 5 to 9 mph, with gusts as high as 20 mph.

    Wednesday Night: Mostly clear, with a low around 76. South wind 6 to 9 mph.

    Thursday: Sunny, with a high near 94. Heat index values as high as 105. South wind 6 to 13 mph, with gusts as high as 25 mph.

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 68. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%.

    Friday: Sunny, with a high near 85.

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

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87.

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 60%.

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 64.

    Monday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.

    Monday Night: A 20 percent chance of showers. Partly cloudy, with a low around 61.

    Tuesday: A 20 percent chance of showers. Mostly sunny, with a high near 81.



    Mehlville MO
     38.51°N 90.32°W (Elev. 548 ft)

    Visit your local NWS office at: https://www.weather.gov/lsx/