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

90°F

32°C

Humidity 59%
Wind Speed E 9 mph
Barometer 30.13 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 16 Jun 11:47 am EDT
Extended Forecast for

Port St. Lucie FL

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms between 2pm and 3pm. Sunny, with a high near 90. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm after midnight.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Light south southeast wind becoming east southeast 5 to 10 mph in the morning.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm after midnight.

    Low: 73 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent 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.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Chance
    T-storms then
    Mostly Clear

  • Juneteenth

    Juneteenth: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 91. Light southeast wind becoming east 5 to 10 mph in the morning.

    High: 91 °F

    Chance
    T-storms

  • Thursday Night

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

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 30 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 morning.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms between 2pm and 3pm. Sunny, with a high near 90. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm after midnight.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Light south southeast wind becoming east southeast 5 to 10 mph in the morning.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm after midnight.
Wednesday
A 30 percent 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.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.
Juneteenth
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 91. Light southeast wind becoming east 5 to 10 mph in the morning.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. East southeast wind around 5 mph becoming calm in the evening.
Friday
A 30 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 morning.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74. East southeast wind around 5 mph becoming calm in the evening.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Light southeast wind becoming east 5 to 10 mph in the morning.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 75. East southeast wind around 5 mph becoming calm in the evening.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. East wind 5 to 10 mph.
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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:
12:14 pm EDT Jun 16, 2025
Forecast Valid:
12pm EDT Jun 16, 2025-6pm EDT Jun 22, 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