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

81°F

27°C

Humidity 100%
Wind Speed W 6 mph
Barometer 29.92 in
Dewpoint 81°F (27°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 17 Aug 6:55 am EDT
Extended Forecast for

Sewall's Point FL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 88. Heat index values as high as 102. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 88 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 80. Southeast wind around 5 mph becoming calm in the evening.

    Low: 80 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Heat index values as high as 103. Light and variable wind becoming northeast 5 to 10 mph in the morning.

    High: 89 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly clear, with a low around 80. North northeast wind 5 to 10 mph.

    Low: 80 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 2pm. Sunny, with a high near 89. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 89 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly clear, with a low around 78. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 78 °F

    T-storms
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Sunny, with a high near 90. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 79. Northeast wind around 5 mph becoming southwest after midnight.

    Low: 79 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 2pm. Sunny, with a high near 91. West wind 5 to 10 mph becoming south southeast in the afternoon. Chance of precipitation is 60%.

    High: 91 °F

    Chance
    T-storms then
    T-storms
    Likely

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 88. Heat index values as high as 102. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 80. Southeast wind around 5 mph becoming calm in the evening.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. Heat index values as high as 103. Light and variable wind becoming northeast 5 to 10 mph in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 2am. Mostly clear, with a low around 80. North northeast wind 5 to 10 mph.
Tuesday
Showers and thunderstorms likely, mainly after 2pm. Sunny, with a high near 89. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly clear, with a low around 78. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 90. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 79. Northeast wind around 5 mph becoming southwest after midnight.
Thursday
Showers and thunderstorms likely, mainly after 2pm. Sunny, with a high near 91. West wind 5 to 10 mph becoming south southeast in the afternoon. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 78. South wind around 5 mph becoming west southwest after midnight. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. West southwest wind 5 to 10 mph becoming south southeast in the afternoon. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 78. South southwest wind around 5 mph. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Mostly sunny, with a high near 88. South southeast wind 5 to 10 mph. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Sewall's Point FL
 27.21°N 80.19°W (Elev. 0 ft)
Last Update:
7:14 am EDT Aug 17, 2025
Forecast Valid:
7am EDT Aug 17, 2025-6pm EDT Aug 23, 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