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

88°F

31°C

Humidity 66%
Wind Speed S 10 mph
Barometer 30.02 in
Dewpoint 75°F (24°C)
Visibility 7.00 mi
Heat Index98°F (37°C)
Last update 15 Jul 12:50 pm EDT
Extended Forecast for

Port St. Lucie FL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 73. South southeast wind around 5 mph.

    Low: 73 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 90. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    T-storms

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms after 8pm. Low around 76. Southeast wind around 5 mph. Chance of precipitation is 80%.

    Low: 76 °F

    Showers then
    Slight Chance
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. High near 90. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 90 °F

    T-storms

  • Thursday Night

    Thursday Night: Showers likely before 8pm. Mostly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. East southeast wind 5 to 10 mph.

    High: 91 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 76. East wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 91. Light east southeast wind becoming east 5 to 10 mph in the afternoon.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 73. South southeast wind around 5 mph.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 90. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms after 8pm. Low around 76. Southeast wind around 5 mph. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. High near 90. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Thursday Night
Showers likely before 8pm. Mostly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. East southeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 76. East wind around 5 mph becoming calm in the evening.
Saturday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 91. Light east southeast wind becoming east 5 to 10 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74. East wind around 5 mph becoming calm in the evening.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Light east southeast wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely. Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely. Sunny, with a high near 91. Light south southeast wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port St. Lucie FL
 27.29°N 80.36°W (Elev. 13 ft)
Last Update:
12:14 pm EDT Jul 15, 2025
Forecast Valid:
12pm EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
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