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Hazardous Weather Conditions

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

Heat Advisory August 16, 10:00am until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 112. South southwest wind around 5 mph becoming north northeast in the afternoon.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. Southeast wind around 5 mph becoming southwest after midnight.

    Low: 78 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 113. West wind around 5 mph.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 79. West wind around 5 mph.

    Low: 79 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Showers and thunderstorms likely after 2pm. Mostly sunny and hot, with a high near 96. West wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 96 °F

    Sunny then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 79. West southwest wind around 5 mph. Chance of precipitation is 60%.

    Low: 79 °F

    T-storms
    Likely then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely after 2pm. Mostly sunny and hot, with a high near 96. West wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%.

    High: 96 °F

    Sunny then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 78 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 112. South southwest wind around 5 mph becoming north northeast in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. Southeast wind around 5 mph becoming southwest after midnight.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 113. West wind around 5 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 79. West wind around 5 mph.
Tuesday
Showers and thunderstorms likely after 2pm. Mostly sunny and hot, with a high near 96. West wind 5 to 10 mph. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 79. West southwest wind around 5 mph. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely after 2pm. Mostly sunny and hot, with a high near 96. West wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. South southeast wind around 5 mph becoming calm in the evening.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Southwest wind around 5 mph.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. South wind around 5 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. South southwest 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:
2:39 am EDT Aug 16, 2026
Forecast Valid:
5am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
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