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.

Partly Cloudy

88°F

31°C

Humidity 66%
Wind Speed SE 16 G 23 mph
Barometer 30.08 in
Dewpoint 75°F (24°C)
Visibility 7.00 mi
Heat Index98°F (37°C)
Last update 17 Jun 4:47 pm EDT
Extended Forecast for

Port St. Lucie FL

  • Tonight

    Tonight: Mostly clear, with a low around 74. East southeast wind 5 to 10 mph becoming light south southeast after midnight. Winds could gust as high as 20 mph.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Light southeast wind becoming east southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Light east southeast wind increasing to 5 to 10 mph in the morning.

    High: 90 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Slight Chance
    T-storms

  • Friday

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

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 73. East southeast wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Light east southeast wind becoming east 5 to 10 mph in the morning.

    High: 90 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 75. East wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 74. East southeast wind 5 to 10 mph becoming light south southeast after midnight. Winds could gust as high as 20 mph.
Wednesday
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Light southeast wind becoming east southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.
Juneteenth
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Light east southeast wind increasing to 5 to 10 mph in the morning.
Thursday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Light south southeast wind becoming east 5 to 10 mph in the afternoon.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 73. East southeast wind around 5 mph becoming calm in the evening.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Light east southeast wind becoming east 5 to 10 mph in the morning.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 75. East wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. East wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 75. East wind around 5 mph. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. East wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. East wind around 5 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. East wind 5 to 10 mph, with gusts as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Port St. Lucie FL
 27.27°N 80.34°W (Elev. 7 ft)
Last Update:
4:40 pm EDT Jun 17, 2025
Forecast Valid:
5pm EDT Jun 17, 2025-6pm EDT Jun 24, 2025
 
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