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.

Showers in Vicinity Haze

77°F

25°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 30.11 in
Dewpoint 77°F (25°C)
Visibility 6.00 mi
Heat Index78°F (26°C)
Last update 27 Jun 6:47 am EDT
Extended Forecast for

Port St. Lucie FL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 92. Heat index values as high as 102. Light east southeast wind increasing to 5 to 10 mph in the afternoon.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 92. Heat index values as high as 102. Light south southeast wind becoming southeast 5 to 10 mph in the afternoon.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76. East southeast wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Calm wind becoming east around 5 mph in the afternoon.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. East southeast wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Calm wind becoming east around 5 mph in the afternoon.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. East wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 92 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 92. Heat index values as high as 102. Light east southeast wind increasing to 5 to 10 mph in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly sunny, with a high near 92. Heat index values as high as 102. Light south southeast wind becoming southeast 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 76. East southeast wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 76. East southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 50 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. East 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 92. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. East southeast wind around 5 mph becoming calm in the evening.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 77. East southeast wind around 5 mph becoming calm in the evening.
Friday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. Light and variable wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 60%.
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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 am EDT Jun 27, 2026
Forecast Valid:
7am EDT Jun 27, 2026-6pm EDT Jul 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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