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Jacksonville, FL Local Forecast Office

4NM SE Altamaha Sound FL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 30 °C
E 27km/h
1m
Tonight
Low: 27 °C
ESE 29km/h
1m
Wednesday
High: 30 °C
S 26km/h
1m
Wednesday Night
Low: 27 °C
S 29km/h
1m
Thursday
High: 31 °C
SSE 24km/h
1m
Thursday Night
Low: 27 °C
S 26km/h
1m
Friday
High: 31 °C
SSE 18km/h
1m
Friday Night
Low: 26 °C
S 21km/h
1m
Saturday
High: 32 °C
S 14km/h
1m

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:26 pm EDT Jul 15, 2025
Forecast Valid: 4pm EDT Jul 15, 2025-6pm EDT Jul 21, 2025

View Nearby Observations

Detailed Forecast

This Afternoon

E wind around 27 km/h, with gusts as high as 39 km/h. A chance of showers and thunderstorms. Seas around 1 m.

Tonight

ESE wind 26 to 29 km/h, with gusts as high as 40 km/h. A chance of showers and thunderstorms, mainly before 8pm. Seas around 1 m.

Wednesday

S wind 24 to 26 km/h, with gusts as high as 35 km/h. A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 1pm. Seas around 1 m.

Wednesday Night

S wind 24 to 29 km/h, with gusts as high as 40 km/h. Mostly clear. Seas around 1 m.

Thursday

SSE wind 18 to 24 km/h, with gusts as high as 34 km/h. A slight chance of showers, then a chance of showers and thunderstorms after 11am. Seas around 1 m.

Thursday Night

S wind 16 to 26 km/h, with gusts as high as 35 km/h. A chance of showers and thunderstorms before 8pm. Seas around 1 m.

Friday

SW wind 13 to 18 km/h becoming SSE in the afternoon. Winds could gust as high as 26 km/h. A chance of showers and thunderstorms after 2pm. Seas around 1 m.

Friday Night

S wind 14 to 21 km/h, with gusts as high as 27 km/h. A chance of showers and thunderstorms before 8pm. Seas around 1 m.

Saturday

WSW wind 11 to 14 km/h becoming S in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas around 1 m.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.