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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Port St. John FL

  • Overnight

    Overnight: Mostly clear, with a low around 77. South southeast wind around 5 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. Heat index values as high as 103. Light southeast wind becoming east 5 to 10 mph in the afternoon.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph becoming light east in the evening.

    Low: 78 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 92. Heat index values as high as 105. Light north northeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 78. East wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming southwest after midnight.

    Low: 77 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 94. West wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 94 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    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%.

    Low: 77 °F

    T-storms
    Likely then
    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 77. South southeast wind around 5 mph.
Thursday
Sunny, with a high near 93. Heat index values as high as 103. Light southeast wind becoming east 5 to 10 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph becoming light east in the evening.
Friday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 92. Heat index values as high as 105. Light north northeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 78. East wind around 5 mph becoming calm in the evening.
Saturday
A 40 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming southwest after midnight.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 94. West wind 5 to 10 mph. Chance of precipitation is 60%.
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, mainly after 2pm. Mostly sunny, with a high near 94. West wind around 10 mph. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 77. Southwest wind around 5 mph. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Southwest wind 5 to 10 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. Southwest wind around 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port St. John FL
 28.48°N 80.79°W (Elev. 23 ft)
Last Update:
1:14 am EDT Jul 23, 2026
Forecast Valid:
1am EDT Jul 23, 2026-6pm EDT Jul 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation