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.

Thunderstorm in Vicinity

82°F

28°C

Humidity 84%
Wind Speed Vrbl 6 mph
Barometer 29.95 in
Dewpoint 77°F (25°C)
Visibility 7.00 mi
Heat Index90°F (32°C)
Last update 25 Sep 2:47 pm EDT
Extended Forecast for

Port St. Lucie FL

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 89. East wind around 5 mph becoming north northwest. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    T-storms
    Likely

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 90. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 89. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 89 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 74. East wind around 5 mph becoming calm.

    Low: 74 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 88 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly clear, with a low around 73. North wind around 5 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 8am. Sunny, with a high near 89. North northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 89. East wind around 5 mph becoming north northwest. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 20%.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 90. Calm wind becoming east southeast around 5 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Sunny, with a high near 89. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 74. East wind around 5 mph becoming calm.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. North northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 73. North wind around 5 mph. Chance of precipitation is 30%.
Monday
A chance of showers, with thunderstorms also possible after 8am. Sunny, with a high near 89. North northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers. Mostly clear, with a low around 72. Northwest wind 5 to 10 mph. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 89. West northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
A 30 percent chance of showers. Mostly clear, with a low around 72. West wind around 5 mph.
Wednesday
A 40 percent chance of showers. Sunny, with a high near 89. West northwest wind 5 to 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port St. Lucie FL
 27.29°N 80.36°W (Elev. 13 ft)
Last Update:
2:14 pm EDT Sep 25, 2025
Forecast Valid:
2pm EDT Sep 25, 2025-6pm EDT Oct 1, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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