Fort Sumter, SC Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Tue
Jun 9 		Showers Late
Close Hourly 		-º / 74º 33% SSE 7 mph 93%
9pm Partly Cloudy 78º 2% SE 7 mph 92%
10pm Mostly Clear 77º 2% SE 7 mph 94%
11pm Partly Cloudy 77º 2% SE 6 mph 94%
Wed
Jun 10 		AM Showers
View Hourly 		87º / 74º 33% SSW 11 mph 73%
12am Partly Cloudy 77º 3% SE 5 mph 94%
1am Partly Cloudy 76º 4% SE 4 mph 93%
2am Partly Cloudy 76º 9% SSE 4 mph 93%
3am Mostly Cloudy 76º 19% SSE 4 mph 94%
4am Few Showers 75º 30% SSE 4 mph 93%
5am Few Showers 75º 34% S 2 mph 95%
6am Cloudy 75º 24% SSW 1 mph 94%
7am Mostly Cloudy 75º 24% S 0 mph 92%
8am Few Showers 78º 33% SSW 2 mph 88%
9am Few Showers 81º 32% SSW 4 mph 81%
10am Cloudy 82º 23% SSW 5 mph 76%
11am Cloudy 83º 8% SSW 6 mph 72%
12pm Mostly Cloudy 85º 3% SSW 7 mph 67%
1pm Mostly Cloudy 86º 2% S 9 mph 65%
2pm Mostly Cloudy 86º 1% S 9 mph 65%
3pm Mostly Cloudy 85º 0% S 10 mph 66%
4pm Mostly Cloudy 85º 1% S 11 mph 67%
5pm Mostly Cloudy 84º 2% S 11 mph 68%
6pm Partly Cloudy 83º 2% S 11 mph 70%
7pm Mostly Sunny 82º 3% S 10 mph 74%
8pm Partly Cloudy 80º 5% S 9 mph 79%
9pm Mostly Clear 79º 5% SSW 8 mph 84%
10pm Mostly Clear 78º 6% SSW 8 mph 86%
11pm Mostly Clear 77º 6% SSW 7 mph 88%
Thu
Jun 11 		Partly Cloudy
View Hourly 		88º / 76º 15% SSW 12 mph 73%
12am Mostly Clear 77º 6% SSW 8 mph 89%
1am Mostly Clear 76º 6% SSW 7 mph 92%
2am Mostly Clear 76º 7% SSW 7 mph 92%
3am Partly Cloudy 76º 7% SW 6 mph 93%
4am Partly Cloudy 75º 7% SW 6 mph 94%
5am Partly Cloudy 75º 7% SW 6 mph 93%
6am Partly Cloudy 75º 7% SW 5 mph 93%
7am Partly Cloudy 76º 8% SW 5 mph 92%
8am Partly Cloudy 78º 7% SW 6 mph 89%
9am Partly Cloudy 82º 4% SW 8 mph 81%
10am Partly Cloudy 84º 9% SW 8 mph 74%
11am Mostly Sunny 86º 8% SW 9 mph 69%
12pm Mostly Sunny 87º 4% SSW 9 mph 66%
1pm Mostly Sunny 87º 7% SSW 11 mph 66%
2pm Partly Cloudy 87º 7% SSW 12 mph 67%
3pm Partly Cloudy 87º 10% SSW 12 mph 67%
4pm Mostly Sunny 87º 16% SSW 12 mph 67%
5pm Mostly Sunny 86º 12% SSW 12 mph 70%
6pm Mostly Sunny 85º 7% SSW 12 mph 72%
7pm Mostly Sunny 84º 3% SSW 11 mph 76%
8pm Sunny 82º 5% SSW 10 mph 81%
Fri
Jun 12 		Partly Cloudy 92º / 76º 24% SW 12 mph 70%
Sat
Jun 13 		PM Thunderstorms 92º / 75º 44% SW 10 mph 69%
Sun
Jun 14 		Partly Cloudy 89º / 75º 20% SSW 13 mph 75%
Mon
Jun 15 		PM Thunderstorms 90º / 75º 64% SW 14 mph 77%
Tue
Jun 16 		PM Thunderstorms 87º / 75º 45% SW 14 mph 74%

Weather Radar for Fort Sumter, SC See Radar

See Radar Map

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Fort Sumter, SC

Tonight
Low : 79ºF
SSE wind 5 to 8 kt. Mostly cloudy. Seas around 2 ft.
Wednesday
High : 81ºF
Variable winds less than 5 kt becoming SSW 7 to 12 kt in the afternoon. Partly sunny. Seas around 2 ft.
Wednesday Night
Low : 80ºF
S wind around 12 kt. Mostly cloudy. Seas around 2 ft.
Thursday
High : 82ºF
SW wind 9 to 14 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 2 ft.
Thursday Night
Low : 81ºF
SSW wind around 13 kt. Partly cloudy. Seas 2 to 3 ft.
Friday
High : 85ºF
WSW wind 9 to 14 kt becoming SSW in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Friday Night
Low : 80ºF
WSW wind 10 to 13 kt. A slight chance of showers and thunderstorms before 8pm. Seas 2 to 3 ft.
Saturday
High : 86ºF
W wind 6 to 11 kt becoming SSW in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Saturday Night
Low : 81ºF
SSW wind 7 to 10 kt. A chance of showers and thunderstorms, mainly between 8pm and 2am. Seas around 2 ft.

NOAA Buoy Data Near Fort Sumter, SC See Map

Loading Map...
Loading Buoy Data...

    Wind Speed Forecast for Fort Sumter, SC

    WednesdayThursday
    Wind Speed (MPH) 742491187681112
    1am5am9am1pm5pm9pm1am5am9am1pm5pm9pm
    MPH 742491187681112
    DIR SESESSSWSSSSWSSWSWSWSSWSSW

    Current Weather Conditions In Fort Sumter, SC

    As Of: 26 minutes ago

    • 78ºF
    • 85ºF
    • 7mph
    • 0º (SE)
    • 7mph
    • Partly Cloudy
    • 10mi
    • 30.12"
    • 92%
    • 0ºF

    The weather right now in Fort Sumter, SC is Partly Cloudy. The current temperature is 78°F, and the expected high and low for today, Tuesday, June 9, 2026, are -° high temperature and 74°F low temperature. The wind is currently blowing at 7 miles per hour, and coming from the Southeast. The wind is gusting to 7 mph. With the wind and the atmosphere the temperature feels like 85° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 92 percent, and air pressure at 30.12 in. Visibility is 10 nautical miles. There are no current weather alert(s).