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

73°F

23°C

Humidity 83%
Wind Speed SE 6 mph
Barometer 30.13 in
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Last update 10 Jan 6:47 pm EST
Extended Forecast for

Port St. Lucie FL

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 63. East southeast wind around 5 mph becoming calm.

    Low: 63 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Light and variable wind becoming north 5 to 10 mph in the afternoon.

    High: 83 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 60. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 60 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60. North northeast wind around 5 mph.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 75. North northeast wind around 5 mph.

    High: 75 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Calm wind becoming west around 5 mph. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 63. East southeast wind around 5 mph becoming calm.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Light and variable wind becoming north 5 to 10 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 60. North wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly cloudy, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 60. North northeast wind around 5 mph.
Tuesday
Partly sunny, with a high near 75. North northeast wind around 5 mph.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 59. Calm wind.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Calm wind becoming west around 5 mph. Chance of precipitation is 40%.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 70. West wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A 20 percent chance of showers. Mostly clear, with a low around 41. Northwest wind around 5 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 66. Northwest wind around 5 mph.
Friday Night
Mostly clear, with a low around 47. Calm wind.
Saturday
Sunny, with a high near 72. Calm wind becoming east northeast around 5 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port St. Lucie FL
 27.27°N 80.36°W (Elev. 16 ft)
Last Update:
6:29 pm EST Jan 10, 2026
Forecast Valid:
6pm EST Jan 10, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation