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.

Thunderstorm in Vicinity

90°F

32°C

Humidity 67%
Wind Speed E 13 G 18 mph
Barometer 30.01 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 14 Jun 2:47 pm EDT
Extended Forecast for

Port St. Lucie FL

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. South southeast wind 5 to 10 mph.

    High: 92 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before midnight. Partly cloudy, with a low around 75. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 92. West southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Mostly Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 9pm. Partly cloudy, with a low around 74. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 93. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 93 °F

    Sunny then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. South wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Calm wind becoming south southwest around 5 mph in the morning.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Light south wind becoming southeast 5 to 10 mph in the afternoon.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. South southeast wind 5 to 10 mph.
Tonight
Showers and thunderstorms likely, mainly before midnight. Partly cloudy, with a low around 75. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 92. West southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely, mainly before 9pm. Partly cloudy, with a low around 74. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 93. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Calm wind becoming south southwest around 5 mph in the morning.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Light south wind becoming southeast 5 to 10 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.
Juneteenth
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Light south wind becoming south southeast 5 to 10 mph in the morning.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. South southeast wind around 5 mph becoming calm in the evening.
Saturday
Showers and thunderstorms likely. Mostly sunny, with a high near 93. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port St. Lucie FL
 27.27°N 80.36°W (Elev. 16 ft)
Last Update:
2:39 pm EDT Jun 14, 2026
Forecast Valid:
2pm EDT Jun 14, 2026-6pm EDT Jun 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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