National Weather Service Forecast for: Hilton Head Island SC
Issued by: National Weather Service Charleston, SC
Updated: 2:45 pm EDT Jul 28, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 82. South wind 9 to 13 mph, with gusts as high as 21 mph.
Partly Cloudy

 Wednesday

Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 3pm. Mostly sunny, with a high near 98. Heat index values as high as 109. West wind 8 to 10 mph.
Mostly Sunny
then Chance
T-storms
 Wednesday
Night
Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly between 11pm and midnight. Partly cloudy, with a low around 79. Southwest wind around 6 mph becoming west after midnight.
Chance
T-storms then
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 93. North wind 5 to 8 mph becoming east in the afternoon.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 79. South wind around 6 mph becoming calm in the evening.
Mostly Clear

 Friday

Friday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Sunny then
Slight Chance
T-storms
 Friday
Night
Friday Night: Partly cloudy, with a low around 80.
Partly Cloudy

 Saturday

Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Mostly Sunny
then Chance
T-storms
 Saturday
Night
Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78.
Chance
T-storms
Lo 82 °F Hi 98 °F Lo 79 °F Hi 93 °F Lo 79 °F Hi 92 °F Lo 80 °F Hi 92 °F Lo 78 °F

Heat Advisory
Heat Advisory
 

Tonight
 
 Partly cloudy, with a low around 82. South wind 9 to 13 mph, with gusts as high as 21 mph.
Wednesday
 
 A 30 percent chance of showers and thunderstorms, mainly before 3pm. Mostly sunny, with a high near 98. Heat index values as high as 109. West wind 8 to 10 mph.
Wednesday Night
 
 A 30 percent chance of showers and thunderstorms, mainly between 11pm and midnight. Partly cloudy, with a low around 79. Southwest wind around 6 mph becoming west after midnight.
Thursday
 
 Sunny, with a high near 93. North wind 5 to 8 mph becoming east in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 79. South wind around 6 mph becoming calm in the evening.
Friday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Friday Night
 
 Partly cloudy, with a low around 80.
Saturday
 
 A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Saturday Night
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78.
Sunday
 
 Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%.
Sunday Night
 
 Showers and thunderstorms likely. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.
Monday
 
 Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Monday Night
 
 Showers and thunderstorms likely. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.
Tuesday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

 

Forecast from NOAA-NWS for Hilton Head Island SC.