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

84°F

29°C

Humidity 84%
Wind Speed E 9 mph
Barometer 29.96 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Oct 3:48 pm EDT
Extended Forecast for

Port St. Lucie FL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 89. East southeast wind around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 73. East southeast wind around 5 mph becoming calm.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 84. Light and variable wind becoming north northwest 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Chance
    T-storms then
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 71. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely

  • Sunday

    Sunday: A 20 percent chance of showers. Partly sunny, with a high near 80. Windy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 80 °F

    Slight Chance
    Showers and
    Windy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 2am. Partly cloudy, with a low around 70. North northeast wind around 15 mph, with gusts as high as 30 mph.

    Low: 70 °F

    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Windy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers and
    Windy

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 67. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 67 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers. Sunny, with a high near 82. North northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 82 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 89. East southeast wind around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 73. East southeast wind around 5 mph becoming calm.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 84. Light and variable wind becoming north northwest 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 71. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 80. Windy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A 20 percent chance of showers before 2am. Partly cloudy, with a low around 70. North northeast wind around 15 mph, with gusts as high as 30 mph.
Monday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Windy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 67. North wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 82. North northeast wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 66. North wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 20 percent chance of showers. Sunny, with a high near 82. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A 10 percent chance of showers. Mostly clear, with a low around 65. North wind 5 to 10 mph.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 82. North northeast wind around 10 mph.
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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:
2:39 pm EDT Oct 16, 2026
Forecast Valid:
3pm EDT Oct 16, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation