Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Saturday

Severe thunderstorms capable of damaging winds will be possible from the Ozark Plateau east into the Tennessee Valley Saturday. Rounds of heavy thunderstorms ahead of a slow moving front will continue locally heavy rainfall and scattered flash flooding potential from the Ozarks to the Ohio and Tennessee Valleys Saturday. Extreme heat will continue for the Intermountain West and Plains. Read More >

For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Saturday
WSW 12kt
< 1ft
Saturday Night
SW 11kt
< 1ft
Sunday
SW 9kt
< 1ft
Sunday Night
WSW 8kt⇓
< 1ft
Monday
⇑SSE 9kt
< 1ft
Monday Night
S 6kt⇓
< 1ft
Tuesday
⇑SE 9kt
< 1ft
Tuesday Night
SSE 6kt⇓
< 1ft
Wednesday
⇑S 9kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:30 am EDT Jul 11, 2026
Forecast Valid: 4am EDT Jul 11, 2026-6pm EDT Jul 17, 2026

View Nearby Observations

Detailed Forecast

Saturday

WSW wind 8 to 12 kt. A slight chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

Saturday Night

SW wind 7 to 11 kt. A chance of showers and thunderstorms, mainly before 8pm. Seas 1 ft or less.

Sunday

W wind 6 to 9 kt becoming SW in the afternoon. Showers and thunderstorms likely, mainly after 5pm. Seas 1 ft or less.

Sunday Night

WSW wind 5 to 8 kt becoming variable and less than 5 kt after midnight. Showers and thunderstorms before 5am, then a chance of showers. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming SSE 5 to 9 kt in the afternoon. A chance of showers, then showers and thunderstorms likely after 8am. Seas 1 ft or less.

Monday Night

S wind around 6 kt becoming variable and less than 5 kt in the evening. Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.

Tuesday

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

Tuesday Night

SSE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms, mainly before 8pm. Seas 1 ft or less.

Wednesday

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

Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 86 degrees.

*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.