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

79°F

26°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 79°F (26°C)
Visibility 7.00 mi
Heat Index84°F (29°C)
Last update 29 Aug 5:47 pm EDT
Extended Forecast for

2 Miles SW Port St. Lucie FL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly between 2am and 4am. Partly cloudy, with a low around 77. East wind 5 to 10 mph.

    Low: 77 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 4pm. Mostly sunny, with a high near 92. Heat index values as high as 105. Light east wind increasing to 5 to 10 mph in the morning. 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

    T-storms
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 77. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Partly sunny, with a high near 92. Heat index values as high as 103. Light east northeast wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 70%.

    High: 92 °F

    Showers
    Likely then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 76. East wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Partly sunny, with a high near 92. Light east northeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 70%.

    High: 92 °F

    Showers
    Likely then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 77. East northeast wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 77 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm, then showers and thunderstorms after 2pm. High near 92. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 80%.

    High: 92 °F

    Showers
    Likely then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms, mainly before 8pm. Low around 76. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 76 °F

    T-storms then
    Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly between 2am and 4am. Partly cloudy, with a low around 77. East wind 5 to 10 mph.
Sunday
Showers and thunderstorms likely, mainly before 4pm. Mostly sunny, with a high near 92. Heat index values as high as 105. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 77. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Partly sunny, with a high near 92. Heat index values as high as 103. Light east northeast wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 76. East wind around 5 mph becoming calm. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm before 2pm, then showers and thunderstorms likely after 2pm. Partly sunny, with a high near 92. Light east northeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 77. East northeast wind around 5 mph becoming calm. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm, then showers and thunderstorms after 2pm. High near 92. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 80%.
Wednesday Night
Showers and thunderstorms, mainly before 8pm. Low around 76. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Thursday
A chance of showers and thunderstorms before 8am, then showers and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms after 2pm. High near 92. East wind 5 to 10 mph. Chance of precipitation is 80%.
Thursday Night
Showers and thunderstorms. Low around 76. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 91. Southeast wind 5 to 10 mph. Chance of precipitation is 80%.
Friday Night
Showers and thunderstorms. Low around 75. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.
Saturday
Showers and thunderstorms. High near 92. Southeast wind 5 to 10 mph. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Port St. Lucie FL
 27.27°N 80.39°W (Elev. 23 ft)
Last Update:
6:15 pm EDT Aug 29, 2026
Forecast Valid:
6pm EDT Aug 29, 2026-6pm EDT Sep 5, 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