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

61°F

16°C

Humidity 63%
Wind Speed NW 9 mph
Barometer 30.08 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 14 Nov 8:48 pm EST
Extended Forecast for

Port St. Lucie FL

  • Tonight

    Tonight: Mostly clear, with a low around 52. Northwest wind around 5 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77. North northwest wind 5 to 10 mph becoming northeast in the afternoon.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. Northeast wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers. Mostly sunny, with a high near 78. East northeast wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 66. East northeast wind around 10 mph, with gusts as high as 25 mph.

    Low: 66 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 78. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 67. East northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. East northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 68. East northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 52. Northwest wind around 5 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 77. North northwest wind 5 to 10 mph becoming northeast in the afternoon.
Sunday Night
Mostly clear, with a low around 61. Northeast wind around 5 mph.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 78. East northeast wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 66. East northeast wind around 10 mph, with gusts as high as 25 mph.
Tuesday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 78. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 67. East northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. East northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 68. East northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly sunny, with a high near 80. East northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers. Partly cloudy, with a low around 69. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
A 50 percent chance of showers. Mostly sunny, with a high near 81. Windy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 70. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
A 40 percent chance of showers. Mostly sunny, with a high near 81. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port St. Lucie FL
 27.27°N 80.36°W (Elev. 16 ft)
Last Update:
8:14 pm EST Nov 14, 2026
Forecast Valid:
9pm EST Nov 14, 2026-6pm EST Nov 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation