Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

For More Weather Information:

Charleston, SC Local Forecast Office

Charleston Harbor MR

Marine Point Forecast

[NOTICE]

Today
⇑ESE 8kt
< 1ft
Tonight
Light Wind
< 1ft
Sunday
⇑S 10kt
< 1ft
Sunday Night
S 8kt
< 1ft
Monday
⇑SW 14kt
< 1ft
Monday Night
WSW 12kt
< 1ft
Tuesday
WSW 13kt
< 1ft
Tuesday Night
SW 9kt⇓
< 1ft
Wednesday
⇑S 9kt
< 1ft

Associated Zone Forecast which includes this point

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

View Nearby Observations

Detailed Forecast

Today

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

Sunday Night

S wind 6 to 8 kt. Mostly clear. Seas 1 ft or less.

Monday

SW wind 6 to 9 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Monday Night

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

Tuesday

WSW wind 9 to 13 kt. A chance of showers and thunderstorms after 2pm. Seas 1 ft or less.

Tuesday Night

SW wind 5 to 9 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms before 2am. Seas 1 ft or less.

Wednesday

Variable winds less than 5 kt becoming S 5 to 9 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.