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

Witham Field Airport (KSUA)

Lat: 27.18°NLon: 80.23°WElev: 13ft.

Fair

82°F

28°C

Humidity 74%
Wind Speed E 9 mph
Barometer 30.01 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 14 Oct 7:48 pm EDT
Extended Forecast for

Port St. Lucie FL

  • Tonight

    Tonight: A 20 percent chance of showers. Partly cloudy, with a low around 74. East northeast wind around 5 mph.

    Low: 74 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 88. East northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am. Partly cloudy, with a low around 75. East northeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 102. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 89 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 60%.

    Low: 73 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 87 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Partly sunny, with a high near 83. Windy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.

    High: 83 °F

    Windy.
    Showers
    Likely then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Windy, with an east northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.

    Low: 72 °F

    T-storms
    Likely and
    Windy then
    Showers
    Likely

Detailed Forecast

Tonight
A 20 percent chance of showers. Partly cloudy, with a low around 74. East northeast wind around 5 mph.
Thursday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 88. East northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am. Partly cloudy, with a low around 75. East northeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.
Friday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 102. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Partly sunny, with a high near 83. Windy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Windy, with an east northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Partly sunny, with a high near 84. Windy, with an east northeast wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Windy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 85. Windy, with a northeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 71. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. Windy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Port St. Lucie FL
 27.27°N 80.36°W (Elev. 16 ft)
Last Update:
7:29 pm EDT Oct 14, 2026
Forecast Valid:
7pm EDT Oct 14, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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