Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

For More Weather Information:

Charleston, SC Local Forecast Office

4NM N Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Today
⇑E 7kt
< 1ft
Tonight
Light Wind
< 1ft
Sunday
⇑SSE 8kt
< 1ft
Sunday Night
S 7kt⇓
< 1ft
Monday
⇑SW 12kt
< 1ft
Monday Night
SW 10kt
< 1ft
Tuesday
WSW 11kt
< 1ft
Tuesday Night
WSW 7kt⇓
< 1ft
Wednesday
⇑S 8kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:35 am EDT Jun 20, 2026
Forecast Valid: 5am EDT Jun 20, 2026-6pm EDT Jun 26, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds less than 5 kt becoming E 5 to 7 kt in the morning. Partly sunny. Seas 1 ft or less.

Tonight

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Sunday

Variable winds less than 5 kt becoming SSE 5 to 8 kt in the afternoon. A slight chance of showers between 10am and 11am. Seas 1 ft or less.

Sunday Night

S wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

Monday

Variable winds less than 5 kt becoming SW 7 to 12 kt in the morning. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Monday Night

SW wind 6 to 10 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.

Tuesday

WSW wind 8 to 11 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Tuesday Night

WSW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. 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 8 kt in the afternoon. A 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 82 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.