Extreme Heat Risk this Week

Extreme heat and little overnight relief will lead to an extreme risk for heat-related impacts through the rest of the week. Extreme Heat Warning in effect on Tuesday. Read More >

For More Weather Information:

Jacksonville, FL Local Forecast Office

Saint Augustine FL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 90 °F
ESE 9kt
< 1ft
Tonight
Low: 78 °F
SSW 8kt
< 1ft
Friday
High: 88 °F
⇑ESE 9kt
< 1ft
Friday Night
Low: 77 °F
S 10kt
< 1ft
Saturday
High: 86 °F
SW 9kt
< 1ft
Saturday Night
Low: 77 °F
SW 9kt
< 1ft
Sunday
High: 86 °F
SW 8kt
< 1ft
Sunday Night
Low: 77 °F
S 10kt
< 1ft
Monday
High: 87 °F
ESE 8kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:06 pm EDT Aug 20, 2026
Forecast Valid: 2pm EDT Aug 20, 2026-6pm EDT Aug 26, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

ESE wind around 9 kt. Showers and thunderstorms likely, mainly after 5pm. Seas 1 ft or less.

Tonight

SSW wind 5 to 8 kt. A chance of showers and thunderstorms, mainly before 8pm. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming ESE 5 to 9 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Friday Night

S wind 7 to 10 kt becoming SW after midnight. A slight chance of showers and thunderstorms, mainly between 10pm and 11pm. Seas 1 ft or less.

Saturday

SW wind around 9 kt. Showers and thunderstorms likely after 2pm. Seas 1 ft or less.

Saturday Night

SW wind around 9 kt. Showers and thunderstorms likely before 11pm, then a slight chance of showers. Seas 1 ft or less.

Sunday

SW wind around 8 kt. A chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.

Sunday Night

S wind 7 to 10 kt becoming SW after midnight. Partly cloudy. Seas 1 ft or less.

Monday

SW wind 5 to 8 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.

Winds and waves higher in and near thunderstorms.

*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.