National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Witham Field Airport (KSUA)

Lat: 27.18°NLon: 80.23°WElev: 13ft.

Fog/Mist

79°F

26°C

Humidity 94%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 77°F (25°C)
Visibility 4.00 mi
Heat Index83°F (28°C)
Last update 17 May 7:47 am EDT
Extended Forecast for

Port St. Lucie FL

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96. Heat index values as high as 103. Light southwest wind becoming south southwest 5 to 10 mph in the morning.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 5am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 74. South southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. West southwest wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 91 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 72. West southwest wind around 5 mph. Chance of precipitation is 60%.

    Low: 72 °F

    T-storms
    Likely

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly after 8am. Mostly sunny, with a high near 91. West wind 5 to 10 mph.

    High: 91 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 69. East wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 88. Northeast wind around 5 mph.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96. Heat index values as high as 103. Light southwest wind becoming south southwest 5 to 10 mph in the morning.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 5am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 74. South southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. West southwest wind 5 to 10 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 72. West southwest wind around 5 mph. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers and thunderstorms, mainly after 8am. Mostly sunny, with a high near 91. West wind 5 to 10 mph.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 69. East wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 88. Northeast wind around 5 mph.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly clear, with a low around 69. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89. Light north northeast wind becoming east 5 to 10 mph in the afternoon.
Wednesday Night
A slight chance of thunderstorms. Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 10%.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Port St. Lucie FL
 27.27°N 80.36°W (Elev. 16 ft)
Last Update:
9:14 am EDT May 17, 2024
Forecast Valid:
9am EDT May 17, 2024-6pm EDT May 23, 2024
 
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