Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Tonight
E 10kt⇓
2ft
Thursday
⇑ESE 11kt
< 1ft
Thursday Night
ESE 7kt⇓
< 1ft
Friday
⇑SE 11kt
< 1ft
Friday Night
SSE 7kt⇓
< 1ft
Independence Day
⇑S 11kt
< 1ft
Saturday Night
SSW 9kt
< 1ft
Sunday
⇑S 14kt
< 1ft
Sunday Night
SSW 11kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:35 pm EDT Jul 1, 2026
Forecast Valid: 6pm EDT Jul 1, 2026-6pm EDT Jul 8, 2026

View Nearby Observations

Detailed Forecast

Tonight

E wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas around 2 ft.

Thursday

Variable winds less than 5 kt becoming ESE 6 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

Thursday Night

ESE wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SE 6 to 11 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Seas 1 ft or less.

Friday Night

SSE wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly clear. Seas 1 ft or less.

Independence Day

Variable winds less than 5 kt becoming S 6 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

Saturday Night

SSW wind 6 to 9 kt. Mostly clear. Seas 1 ft or less.

Sunday

S wind 5 to 8 kt increasing to 11 to 14 kt in the afternoon. Mostly sunny. Seas 1 ft or less.

Sunday Night

SSW wind 9 to 11 kt. A slight chance of showers and thunderstorms after 2am. 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 87 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.