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

Hazardous Weather Conditions

Current conditions at

Titusville (KTIX)

Lat: 28.52°NLon: 80.8°WElev: 36ft.

Fair

81°F

27°C

Humidity 89%
Wind Speed NW 7 mph
Barometer 29.85 in
Dewpoint 77°F (25°C)
Visibility 7.00 mi
Heat Index88°F (31°C)
Last update 20 Aug 7:47 am EDT
Extended Forecast for

Port St. John FL

High Surf Advisory August 20, 08:27am until August 21, 08:00pm
Click here for hazard details and duration
High Surf Advisory
  •  
    High Surf Advisory August 20, 08:27am until August 21, 08:00pm

    NOW until 8:00pm Thu

    High Surf Advisory

  • Today

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 77. North wind 5 to 10 mph becoming west southwest after midnight.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Showers and thunderstorms likely after 2pm. Sunny and hot, with a high near 95. Heat index values as high as 105. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    Sunny then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 77. West southwest wind around 5 mph. Chance of precipitation is 60%.

    Low: 77 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers, then showers and thunderstorms likely after 11am. Sunny, with a high near 94. West southwest wind around 5 mph. Chance of precipitation is 70%.

    High: 94 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 2am, then a chance of showers. Partly cloudy, with a low around 77. West southwest wind around 5 mph. Chance of precipitation is 60%.

    Low: 77 °F

    T-storms
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 92. West southwest wind around 5 mph. Chance of precipitation is 70%.

    High: 92 °F

    Showers
    Likely then
    T-storms
    Likely

  • Saturday Night

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

    Low: 76 °F

    T-storms
    Likely

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly after 11am. Sunny, with a high near 91. Heat index values as high as 102. North wind 10 to 15 mph, with gusts as high as 20 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly clear, with a low around 77. North wind 5 to 10 mph becoming west southwest after midnight.
Thursday
Showers and thunderstorms likely after 2pm. Sunny and hot, with a high near 95. Heat index values as high as 105. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 77. West southwest wind around 5 mph. Chance of precipitation is 60%.
Friday
A chance of showers, then showers and thunderstorms likely after 11am. Sunny, with a high near 94. West southwest wind around 5 mph. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely before 2am, then a chance of showers. Partly cloudy, with a low around 77. West southwest wind around 5 mph. Chance of precipitation is 60%.
Saturday
Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 92. West southwest wind around 5 mph. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 76. Southwest wind around 5 mph. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 93. 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 77. West southwest wind around 5 mph. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 94. West wind around 5 mph. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 77. West southwest wind around 5 mph. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 93. West wind around 5 mph becoming northeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port St. John FL
 28.5°N 80.78°W (Elev. 23 ft)
Last Update:
8:14 am EDT Aug 20, 2025
Forecast Valid:
8am EDT Aug 20, 2025-6pm EDT Aug 26, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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