South Dewees Island, SC Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Mon
Jul 13
PM Thunderstorms
Close Hourly
88º / 74º 57% SSW 7 mph 87%
7am Partly Cloudy 75º 5% N 1 mph 96%
8am Partly Cloudy 78º 4% NW 2 mph 93%
9am Partly Cloudy 80º 4% WNW 3 mph 89%
10am Mostly Cloudy 82º 15% WNW 3 mph 83%
11am Cloudy 84º 15% W 3 mph 79%
12pm Cloudy 85º 16% S 4 mph 75%
1pm Showers 86º 37% SSE 6 mph 74%
2pm Scattered Thunderstorms 87º 55% SSE 6 mph 74%
3pm Showers 84º 46% SSE 7 mph 80%
4pm Scattered Thunderstorms 82º 57% S 6 mph 85%
5pm Scattered Thunderstorms 82º 51% S 6 mph 86%
6pm Showers 81º 53% SSE 4 mph 88%
7pm Showers 81º 47% S 2 mph 90%
8pm Scattered Thunderstorms 79º 52% E 1 mph 94%
9pm Cloudy 77º 24% N 1 mph 99%
10pm Scattered Thunderstorms 77º 37% NNE 1 mph 99%
11pm Scattered Thunderstorms 76º 48% NE 1 mph 100%
Tue
Jul 14
Scattered Thunderstorms
View Hourly
85º / 74º 45% ENE 8 mph 88%
12am Scattered Thunderstorms 76º 51% NNE 1 mph 100%
1am Scattered Thunderstorms 76º 49% NE 0 mph 100%
2am Showers 75º 53% NE 1 mph 100%
3am Showers 75º 50% NE 0 mph 100%
4am Showers 75º 43% NE 1 mph 100%
5am Cloudy 75º 21% NE 1 mph 100%
6am Cloudy 75º 17% NE 1 mph 100%
7am Cloudy 75º 24% NE 1 mph 100%
8am Few Showers 76º 30% NE 3 mph 99%
9am Showers 78º 35% NNE 3 mph 93%
10am Isolated Thunderstorms 80º 33% NE 4 mph 92%
11am Scattered Thunderstorms 81º 45% NE 4 mph 89%
12pm Scattered Thunderstorms 82º 39% ENE 6 mph 87%
1pm Isolated Thunderstorms 83º 33% E 6 mph 82%
2pm Few Showers 84º 32% E 7 mph 81%
3pm Mostly Cloudy 83º 23% E 8 mph 81%
4pm Mostly Cloudy 82º 24% ENE 6 mph 81%
5pm Cloudy 82º 24% E 5 mph 82%
6pm Cloudy 81º 21% E 6 mph 87%
7pm Mostly Cloudy 81º 23% E 4 mph 88%
8pm Cloudy 80º 24% ENE 3 mph 90%
9pm Cloudy 79º 20% ENE 2 mph 93%
10pm Cloudy 78º 23% ENE 1 mph 95%
11pm Mostly Cloudy 78º 18% NE 1 mph 96%
Wed
Jul 15
Showers
View Hourly
88º / 75º 43% ENE 6 mph 81%
12am Cloudy 77º 19% NE 1 mph 98%
1am Cloudy 77º 17% NE 0 mph 98%
2am Mostly Cloudy 77º 11% NE 0 mph 98%
3am Cloudy 76º 14% NNE 1 mph 98%
4am Partly Cloudy 76º 14% NNE 1 mph 99%
5am Partly Cloudy 75º 11% NNE 1 mph 100%
6am Partly Cloudy 75º 11% NNE 1 mph 100%
Thu
Jul 16
Partly Cloudy 92º / 77º 20% SW 8 mph 75%
Fri
Jul 17
Mostly Sunny 93º / 77º 15% S 10 mph 75%
Sat
Jul 18
Partly Cloudy 91º / 78º 17% S 12 mph 75%
Sun
Jul 19
PM Thunderstorms 92º / 78º 40% SSW 13 mph 73%
Mon
Jul 20
Isolated Thunderstorms 90º / 77º 34% SSW 12 mph 76%

Weather Radar for South Dewees Island, SC See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for South Dewees Island, SC

Today
High : 83ºF
Variable winds less than 5 kt becoming SSE 5 to 7 kt in the afternoon. A chance of showers and thunderstorms, mainly after 2pm. Seas around 2 ft.
Tonight
Low : 77ºF
Variable winds 5 kt or less. Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 2am. Seas 1 to 2 ft.
Tuesday
High : 82ºF
ENE wind 5 to 8 kt becoming N in the morning. Showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 5pm, then a chance of showers and thunderstorms after 5pm. Seas 1 to 2 ft.
Tuesday Night
Low : 79ºF
SE wind around 6 kt becoming variable and less than 5 kt in the evening. A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Seas around 2 ft.
Wednesday
High : 84ºF
Variable winds less than 5 kt becoming ESE 5 to 7 kt in the morning. A chance of showers and thunderstorms, mainly after 2pm. Seas around 2 ft.
Wednesday Night
Low : 79ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms before 8pm. Seas 1 to 2 ft.
Thursday
High : 86ºF
Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. Sunny. Seas 1 to 2 ft.
Thursday Night
Low : 81ºF
SSW wind 6 to 10 kt becoming WSW after midnight. Mostly clear. Seas around 2 ft.
Friday
High : 87ºF
Variable winds less than 5 kt becoming S 6 to 11 kt in the afternoon. Sunny. Seas 1 to 2 ft.

NOAA Buoy Data Near South Dewees Island, SC See Map

Loading Map...
Loading Buoy Data...

    Wind Speed Forecast for South Dewees Island, SC

    MondayTuesdayWednesday
    Wind Speed (MPH) 137210148411
    11am3pm7pm11pm3am7am11am3pm7pm11pm3am7am
    MPH 137210148411
    DIR NWSSESNENENENEEENENNE

    Current Weather Conditions In South Dewees Island, SC

    As Of: 55 minutes ago

    • 75ºF
    • 75ºF
    • 1mph
    • 0º (N)
    • 1mph
    • Partly Cloudy
    • 9mi
    • 30.05"
    • 96%
    • 0ºF

    The weather right now in South Dewees Island, SC is Partly Cloudy. The current temperature is 75°F, and the expected high and low for today, Monday, July 13, 2026, are 88° high temperature and 74°F low temperature. The wind is currently blowing at 1 miles per hour, and coming from the North. The wind is gusting to 1 mph. With the wind and the atmosphere the temperature feels like 75° Fahrenheit. Expected precipitation is 5 percent, with current humidity at 96 percent, and air pressure at 30.05 in. Visibility is 9 nautical miles. There are no current weather alert(s).