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.

Overcast

79°F

26°C

Humidity 84%
Wind Speed W 8 mph
Barometer 30.01 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 30 Jun 10:55 pm EDT
Extended Forecast for

Port St. Lucie FL

  • Tonight

    Tonight: A 20 percent chance of showers between 4am and 5am. Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 90. Light north wind becoming northeast 5 to 10 mph in the afternoon.

    High: 90 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 75. East northeast wind around 5 mph becoming calm.

    Low: 75 °F

    Chance
    T-storms

  • Thursday

    Thursday: A slight 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

    Slight 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: A slight chance of showers, then showers and thunderstorms after 11am. High near 92. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 92 °F

    Slight Chance
    T-storms then
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms, mainly before 8pm. Low around 75. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 75 °F

    T-storms then
    Slight Chance
    T-storms

  • Independence Day

    Independence Day: Showers and thunderstorms, mainly after 2pm. Some of the storms could produce heavy rainfall. High near 90. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 90 °F

    Chance
    T-storms then
    Heavy Rain

  • Saturday Night

    Saturday Night: Showers and thunderstorms, mainly before 8pm. Some of the storms could produce heavy rainfall. Low around 75. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 75 °F

    Heavy Rain
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers between 4am and 5am. Partly cloudy, with a low around 76. Calm wind.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 90. Light north wind becoming northeast 5 to 10 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 75. East northeast wind around 5 mph becoming calm.
Thursday
A slight 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
A slight chance of showers, then showers and thunderstorms after 11am. High near 92. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
Showers and thunderstorms, mainly before 8pm. Low around 75. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.
Independence Day
Showers and thunderstorms, mainly after 2pm. Some of the storms could produce heavy rainfall. High near 90. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.
Saturday Night
Showers and thunderstorms, mainly before 8pm. Some of the storms could produce heavy rainfall. Low around 75. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 91. 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 75. 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 91. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind becoming east southeast around 5 mph in the afternoon.
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Forecast Area
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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 Jun 30, 2026
Forecast Valid:
11pm EDT Jun 30, 2026-6pm EDT Jul 7, 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