Dangerous, Record-Breaking Heat to Continue in the Central and Eastern U.S.; Severe Thunderstorms in the Upper Midwest; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will continue across most of the central and eastern U.S this week. Heat indices will exceed 100 degrees. Severe storms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians Thursday, with the primary threat large to very large hail. Critical fire weather to continue in the Four Corners Region Read More >

For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Thursday
⇑ESE 10kt
< 1ft
Thursday Night
ESE 7kt⇓
< 1ft
Friday
⇑SE 10kt
< 1ft
Friday Night
SSE 7kt⇓
< 1ft
Independence Day
⇑SSE 11kt
< 1ft
Saturday Night
SSW 9kt
< 1ft
Sunday
⇑S 13kt
< 1ft
Sunday Night
SSW 11kt
< 1ft
Monday
⇑SSW 14kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:35 am EDT Jul 2, 2026
Forecast Valid: 3am EDT Jul 2, 2026-6pm EDT Jul 8, 2026

View Nearby Observations

Detailed Forecast

Thursday

Variable winds less than 5 kt becoming ESE 5 to 10 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. Mostly clear. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming SE 5 to 10 kt in the afternoon. 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 SSE 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

Variable winds less than 5 kt becoming S 8 to 13 kt in the morning. Sunny. Seas 1 ft or less.

Sunday Night

SSW wind 9 to 11 kt. Mostly clear. Seas 1 ft or less.

Monday

WSW wind 8 to 11 kt becoming SSW 11 to 14 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 85 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.