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.

Partly Cloudy

90°F

32°C

Humidity 52%
Wind Speed E 12 mph
Barometer 30.18 in
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Heat Index96°F (36°C)
Last update 18 May 3:47 pm EDT
Extended Forecast for

Port St. John FL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. East wind around 15 mph, with gusts as high as 20 mph.

    High: 87 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 76. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 87. East wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. East southeast wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 88. East wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. East wind 5 to 10 mph becoming light east southeast after midnight.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 88. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly clear, with a low around 76. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. East wind 5 to 15 mph. Chance of precipitation is 40%.

    High: 89 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. East wind around 15 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 76. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 87. East wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 76. East southeast wind 5 to 10 mph.
Wednesday
A slight chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 88. East wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 75. East wind 5 to 10 mph becoming light east southeast after midnight.
Thursday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 88. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 20%.
Thursday Night
A slight chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly clear, with a low around 76. East southeast wind 5 to 10 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Sunny, with a high near 89. East wind 5 to 15 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 77. East southeast wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. East wind 5 to 15 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. East southeast wind 5 to 15 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 pm EDT May 18, 2026
Forecast Valid:
4pm EDT May 18, 2026-6pm EDT May 24, 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