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.

Mostly Cloudy

77°F

25°C

Humidity 61%
Wind Speed E 14 mph
Barometer 30.16 in
Dewpoint 63°F (17°C)
Visibility 7.00 mi
Heat Index79°F (26°C)
Last update 14 Feb 11:47 am EST
Extended Forecast for

Port St. Lucie FL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers after 3pm. Sunny, with a high near 77. East northeast wind 5 to 10 mph.

    High: 77 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 61. South southeast wind around 5 mph.

    Low: 61 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers. Partly sunny, with a high near 81. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 81 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. South wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Chance
    Showers then
    Showers
    Likely

  • Washington's Birthday

    Washington's Birthday: A 40 percent chance of showers. Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58. North wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. East northeast wind 5 to 10 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers after 3pm. Sunny, with a high near 77. East northeast wind 5 to 10 mph.
Tonight
A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 61. South southeast wind around 5 mph.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 81. South wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. South wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Washington's Birthday
A 40 percent chance of showers. Mostly sunny, with a high near 80. Southwest wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Partly cloudy, with a low around 58. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 77. East northeast wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 57. Calm wind.
Wednesday
Mostly sunny, with a high near 81. Calm wind becoming south southeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 56. Calm wind.
Thursday
Mostly sunny, with a high near 82. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 57. Calm wind.
Friday
Sunny, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon.
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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:
11:15 am EST Feb 14, 2026
Forecast Valid:
12pm EST Feb 14, 2026-6pm EST Feb 20, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation