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.

Fog/Mist

68°F

20°C

Humidity 94%
Wind Speed NE 12 mph
Barometer 29.98 in
Dewpoint 66°F (19°C)
Visibility 6.00 mi
Last update 9 Dec 3:47 pm EST
Extended Forecast for

Port St. Lucie FL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly cloudy, with a high near 72. North northeast wind around 10 mph.

    High: 72 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Mostly cloudy, with a low around 61. North wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. North northwest wind around 5 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. Calm wind becoming west northwest around 5 mph after midnight.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Northwest wind 5 to 10 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76. Calm wind becoming north northeast around 5 mph in the morning.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 78. Light east northeast wind becoming east 5 to 10 mph in the morning.

    High: 78 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a high near 72. North northeast wind around 10 mph.
Tonight
A 20 percent chance of showers before 8pm. Mostly cloudy, with a low around 61. North wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 76. North northwest wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 49. Calm wind becoming west northwest around 5 mph after midnight.
Thursday
Sunny, with a high near 72. Northwest wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 50. Calm wind.
Friday
Sunny, with a high near 76. Calm wind becoming north northeast around 5 mph in the morning.
Friday Night
Partly cloudy, with a low around 58. Calm wind.
Saturday
Partly sunny, with a high near 78. Light east northeast wind becoming east 5 to 10 mph in the morning.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 63. Calm wind.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 78. North northeast wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 61. North wind around 5 mph.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 76. Northeast wind around 10 mph, with gusts as high as 20 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:
4:14 pm EST Dec 9, 2025
Forecast Valid:
4pm EST Dec 9, 2025-6pm EST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation