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

82°F

28°C

Humidity 84%
Wind Speed Vrbl 5 mph
Barometer 29.99 in
Dewpoint 77°F (25°C)
Visibility 7.00 mi
Heat Index90°F (32°C)
Last update 10 Sep 5:47 pm EDT
Extended Forecast for

2 Miles SW Port St. Lucie FL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 11am. Mostly sunny, with a high near 91. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm.

    Low: 76 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. Heat index values as high as 103. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 91 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 8pm. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms, mainly after 2pm. High near 91. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 91 °F

    Chance
    T-storms then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 8pm. Low around 74. Calm wind. Chance of precipitation is 80%.

    Low: 74 °F

    T-storms then
    Slight Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon.

    High: 91 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 11am. Mostly sunny, with a high near 91. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. Heat index values as high as 103. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely before 8pm. Mostly cloudy, with a low around 75. Calm wind. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms, mainly after 2pm. High near 91. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.
Sunday Night
Showers and thunderstorms, mainly before 8pm. Low around 74. Calm wind. Chance of precipitation is 80%.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Calm wind.
Tuesday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 90. East northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 76. East northeast wind around 5 mph. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 89. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 75. East northeast wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. East northeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Port St. Lucie FL
 27.27°N 80.39°W (Elev. 23 ft)
Last Update:
6:14 pm EDT Sep 10, 2026
Forecast Valid:
6pm EDT Sep 10, 2026-6pm EDT Sep 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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