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.

Partly Cloudy

79°F

26°C

Humidity 94%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 23 May 10:55 pm EDT
Extended Forecast for

Port St. Lucie FL

  • Tonight

    Tonight: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 90. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 71. East southeast wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after 8am. Sunny, with a high near 89. Light southeast wind becoming east southeast 5 to 10 mph in the morning.

    High: 89 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly clear, with a low around 72. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Memorial Day

    Memorial Day: A chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89. Light south wind becoming east southeast 5 to 10 mph in the afternoon. Chance of precipitation is 50%.

    High: 89 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 90. Light south southeast wind becoming east southeast 5 to 10 mph in the morning.

    High: 90 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 71. Calm wind.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 90. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 71. East southeast wind around 5 mph becoming calm in the evening.
Sunday
A 50 percent chance of showers and thunderstorms after 8am. Sunny, with a high near 89. Light southeast wind becoming east southeast 5 to 10 mph in the morning.
Sunday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly clear, with a low around 72. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Memorial Day
A chance of showers between 8am and 11am, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 89. Light south wind becoming east southeast 5 to 10 mph in the afternoon. Chance of precipitation is 50%.
Monday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 50 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 90. Light south southeast wind becoming east southeast 5 to 10 mph in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
A 50 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.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. East southeast wind around 5 mph becoming calm in the evening.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southeast wind around 5 mph becoming calm.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming south southwest 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
 27.29°N 80.36°W (Elev. 13 ft)
Last Update:
10:15 pm EDT May 23, 2025
Forecast Valid:
11pm EDT May 23, 2025-6pm EDT May 30, 2025
 
Forecast Discussion
 
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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