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.

Light Rain

N/A

Humidity NA
Wind Speed E 9 mph
Barometer 30.00 in
Dewpoint N/A
Visibility 5.00 mi
Last update 3 Sep 12:47 pm EDT
Extended Forecast for

Port St. John FL

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly between 2pm and 5pm. Mostly cloudy, with a high near 90. Heat index values as high as 102. East southeast wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 76. Southeast wind around 5 mph.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 91. Heat index values as high as 105. South southeast wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 76. South wind around 5 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

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

    High: 92 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 75. South southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. West southwest wind around 5 mph. Chance of precipitation is 70%.

    High: 92 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. South wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Labor Day

    Labor Day: A chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 90. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 90 °F

    Chance
    T-storms then
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly between 2pm and 5pm. Mostly cloudy, with a high near 90. Heat index values as high as 102. East southeast wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 76. Southeast wind around 5 mph.
Friday
A 50 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 91. Heat index values as high as 105. South southeast wind 5 to 10 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 76. South wind around 5 mph. Chance of precipitation is 30%.
Saturday
Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 92. South southwest wind around 5 mph. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 75. South southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. West southwest wind around 5 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 75. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Labor Day
A chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 90. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms after 8pm. Low around 75. East southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 89. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 75. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. East northeast wind 5 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Port St. John FL
 28.48°N 80.79°W (Elev. 23 ft)
Last Update:
1:39 pm EDT Sep 3, 2026
Forecast Valid:
1pm EDT Sep 3, 2026-6pm EDT Sep 9, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation