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

Titusville (KTIX)

Lat: 28.52°NLon: 80.8°WElev: 36ft.

Partly Cloudy

N/A

Humidity NA
Wind Speed SW 5 mph
Barometer 30.04 in
Dewpoint N/A
Visibility 7.00 mi
Last update 28 Aug 2:47 pm EDT
Extended Forecast for

Port St. John FL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 103. East southeast wind around 5 mph.

    High: 93 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 77. East southeast wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 92. Heat index values as high as 103. Light southeast wind becoming east 5 to 10 mph in the afternoon.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 78. East wind around 5 mph.

    Low: 78 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 92. East wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 92 °F

    Showers
    Likely then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 78. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 92. East northeast wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 92 °F

    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 8pm. Partly 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

  • Tuesday

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

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 103. East southeast wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 77. East southeast wind around 5 mph becoming calm in the evening.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 92. Heat index values as high as 103. Light southeast wind becoming east 5 to 10 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 78. East wind around 5 mph.
Sunday
Showers and thunderstorms likely, mainly before 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 92. East wind 5 to 10 mph. Chance of precipitation is 70%.
Sunday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 78. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
A chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 92. East northeast wind 5 to 10 mph. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 77. East northeast wind around 5 mph becoming calm. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 91. East northeast wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 77. East northeast wind around 5 mph becoming calm in the evening.
Wednesday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. East wind 5 to 10 mph. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 77. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Light east northeast wind becoming east 5 to 10 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port St. John FL
 28.48°N 80.79°W (Elev. 23 ft)
Last Update:
2:39 pm EDT Aug 28, 2026
Forecast Valid:
3pm EDT Aug 28, 2026-6pm EDT Sep 3, 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