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7-Day Forecast 27.27°N 80.34°W (Text-Only)
NWS Forecast for: Port St. Lucie FL
Issued by: National Weather Service Melbourne, FL
Last Update: 7:29 am EDT Jun 30, 2026
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  • Today

    Today: A 40 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 1am, then a slight chance of thunderstorms after 4am.  Partly cloudy, with a low around 76. Northeast wind around 5 mph becoming calm.  Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms


  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly between 3pm and 4pm.  Mostly sunny, with a high near 90. Light north northeast wind becoming northeast 5 to 10 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    T-storms
    Likely


  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 75. Northeast wind around 5 mph becoming calm.  Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers and thunderstorms likely after 11am.  Mostly sunny, with a high near 91. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 91 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Thursday
    Night

    Thursday Night: Showers and thunderstorms likely, mainly before 8pm.  Partly cloudy, with a low around 75. East southeast wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 2pm.  Mostly sunny, with a high near 92. Calm wind becoming east southeast around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 92 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm.  Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Independence
    Day

    Independence Day: Showers and thunderstorms likely, mainly after 2pm.  Mostly sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 92 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Today: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming northeast around 5 mph in the afternoon.

    Tonight: A chance of showers and thunderstorms, mainly before 1am, then a slight chance of thunderstorms after 4am. Partly cloudy, with a low around 76. Northeast wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Wednesday: Showers and thunderstorms likely, mainly between 3pm and 4pm. Mostly sunny, with a high near 90. Light north northeast wind becoming northeast 5 to 10 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 75. Northeast wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Thursday: A chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 91. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%.

    Thursday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 75. East southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Friday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 70%.

    Friday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Independence Day: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 70%.

    Saturday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 75. South southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Sunday: Showers and thunderstorms likely. Mostly sunny, with a high near 92. Light south wind becoming southeast 5 to 10 mph in the afternoon. Chance of precipitation is 70%.

    Sunday Night: Showers and thunderstorms likely. Partly cloudy, with a low around 76. South southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Monday: Showers and thunderstorms likely. Mostly sunny, with a high near 93. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%.



    Port St. Lucie FL
     27.27°N 80.34°W (Elev. 7 ft)

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