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.

Thunderstorm Rain

N/A

Humidity NA
Wind Speed Vrbl 7 mph
Barometer 30.15 in
Dewpoint N/A
Visibility 4.00 mi
Last update 9 Sep 1:47 pm EDT
Extended Forecast for

Port St. John FL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 104. East wind around 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 78. East southeast wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 106. Light east wind becoming east southeast 5 to 10 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Showers and possibly a thunderstorm after 2pm. High near 92. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 92 °F

    Sunny then
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 8pm. Low around 76. South southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 76 °F

    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 92. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon. Chance of precipitation is 70%.

    High: 92 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 77 °F

    T-storms
    Likely then
    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 92. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 92 °F

    Mostly Sunny
    then T-storms
    Likely

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Heat index values as high as 104. East wind around 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 78. East southeast wind around 5 mph becoming calm in the evening.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 106. Light east wind becoming east southeast 5 to 10 mph in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm.
Friday
Showers and possibly a thunderstorm after 2pm. High near 92. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm before 8pm. Low around 76. South southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Saturday
A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 92. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 92. Calm wind becoming east southeast around 5 mph in the afternoon. Chance of precipitation is 60%.
Sunday Night
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Calm wind.
Tuesday
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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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:
1:39 pm EDT Sep 9, 2026
Forecast Valid:
2pm EDT Sep 9, 2026-6pm EDT Sep 15, 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