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

77°F

25°C

Humidity 100%
Wind Speed Calm
Barometer 29.84 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 7 Oct 7:50 am EDT
Extended Forecast for

Port St. Lucie FL

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. High near 87. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Slight Chance
    T-storms then
    Showers

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am. Low around 72. North wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 72 °F

    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 87. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Slight Chance
    T-storms then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm, mainly before 2am. Low around 72. Calm wind. Chance of precipitation is 80%.

    Low: 72 °F

    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 88. Light southeast wind becoming east southeast 5 to 10 mph in the morning. Chance of precipitation is 70%.

    High: 88 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 75. East southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 88. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 88 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 76 °F

    T-storms then
    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 90. Southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. High near 87. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms, mainly before 2am. Low around 72. North wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 87. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm, mainly before 2am. Low around 72. Calm wind. Chance of precipitation is 80%.
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 88. Light southeast wind becoming east southeast 5 to 10 mph in the morning. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 75. East southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday
Showers and possibly a thunderstorm. High near 88. Southeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 76. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 90. Southeast wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. East southeast wind around 5 mph becoming calm.
Columbus Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88. Northwest wind 5 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Port St. Lucie FL
 27.29°N 80.36°W (Elev. 13 ft)
Last Update:
7:29 am EDT Oct 7, 2026
Forecast Valid:
7am EDT Oct 7, 2026-6pm EDT Oct 13, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation