Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Sunday
⇑S 10kt
< 1ft
Sunday Night
SSW 8kt
< 1ft
Monday
⇑SW 13kt
< 1ft
Monday Night
WSW 12kt
< 1ft
Tuesday
W 13kt
< 1ft
Tuesday Night
WSW 9kt
< 1ft
Wednesday
⇑SE 8kt
< 1ft
Wednesday Night
SE 6kt⇓
< 1ft
Thursday
⇑S 10kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:35 am EDT Jun 21, 2026
Forecast Valid: 4am EDT Jun 21, 2026-6pm EDT Jun 27, 2026

View Nearby Observations

Detailed Forecast

Sunday

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. A slight chance of showers and thunderstorms after 3pm. Seas 1 ft or less.

Sunday Night

SSW wind 5 to 8 kt becoming WSW after midnight. Mostly clear. Seas 1 ft or less.

Monday

SW wind 6 to 9 kt increasing to 10 to 13 kt in the afternoon. A slight chance of showers and thunderstorms between 4pm and 5pm. Seas 1 ft or less.

Monday Night

WSW wind 10 to 12 kt. A slight chance of showers and thunderstorms between 7pm and 8pm. Seas 1 ft or less.

Tuesday

W wind 10 to 13 kt. A slight chance of showers, with thunderstorms also possible after 11am. Seas 1 ft or less.

Tuesday Night

WSW wind 5 to 9 kt becoming W after midnight. A slight chance of showers and thunderstorms before 2am. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming SE 5 to 8 kt in the afternoon. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Wednesday Night

SE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms, mainly before 2am. Seas 1 ft or less.

Thursday

Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. A chance of showers and thunderstorms, mainly 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.