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Jacksonville, FL - Long Branch Marine Weather Forecast

Station JXUF1 - 8720245 - Jacksonville University, FL

September 20, 2026 12:48 pm EDT
Location: 30.354N 81.612W
Water Temperature: 84.4°F (29.1°C)


This Afternoon - 88°F
Sep 20, 2026
13 mph NE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 88, with temperatures falling to around 84 in the afternoon. Northeast wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tonight - 74°F
Sep 20, 2026
2 to 12 mph SE
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy. Low around 74, with temperatures rising to around 75 overnight. Southeast wind 2 to 12 mph, with gusts as high as 17 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Monday - 89°F
Sep 21, 2026
3 to 15 mph NE
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 9am, then a slight chance of showers and thunderstorms between 9am and noon, then a chance of showers and thunderstorms between noon and 2pm, then a chance of showers and thunderstorms. Partly sunny. High near 89, with temperatures falling to around 84 in the afternoon. Northeast wind 3 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Monday Night - 75°F
Sep 21, 2026
5 to 14 mph SE
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before 8pm. Partly cloudy. Low around 75, with temperatures rising to around 76 overnight. Southeast wind 5 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Tuesday - 89°F
Sep 22, 2026
5 to 14 mph NE
Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 8am and 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and thunderstorms likely. Mostly sunny. High near 89, with temperatures falling to around 84 in the afternoon. Northeast wind 5 to 14 mph. Chance of precipitation is 60%.
Tuesday Night - 75°F
Sep 22, 2026
5 to 12 mph E
Showers And Thunderstorms Likely then Partly Cloudy
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 60%.
Wednesday - 88°F
Sep 23, 2026
6 to 16 mph NE
Showers And Thunderstorms Likely
Showers and thunderstorms likely after 8am. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Wednesday Night - 74°F
Sep 23, 2026
5 to 14 mph NE
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 70%.
Thursday - 85°F
Sep 24, 2026
9 to 17 mph NE
Chance Showers And Thunderstorms
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Thursday Night - 73°F
Sep 24, 2026
7 to 15 mph NE
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Chance of precipitation is 40%.
Friday - 84°F
Sep 25, 2026
10 to 14 mph NE
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 8am and 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Friday Night - 71°F
Sep 25, 2026
3 to 13 mph NE
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Chance of precipitation is 20%.
Saturday - 83°F
Sep 26, 2026
7 to 13 mph NE
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
A slight chance of rain showers between 8am and 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Saturday Night - 70°F
Sep 26, 2026
5 to 12 mph NE
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70.

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