National Weather Service Forecast for: Hilton Head Island SC
Issued by: National Weather Service Charleston, SC
Updated: 4:48 am EDT Jun 22, 2026
 
Today

Today: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 92. Heat index values as high as 103. West wind around 10 mph.
Mostly Sunny
then Slight
Chance
T-storms
 Tonight

Tonight: Mostly clear, with a low around 77. Southwest wind around 9 mph.
Mostly Clear

 Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 94. Heat index values as high as 106. West wind around 11 mph.
Sunny then
Slight Chance
T-storms
 Tuesday
Night
Tuesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 77. West wind 6 to 8 mph. Chance of precipitation is 40%.
Chance
T-storms then
Slight Chance
Showers
 Wednesday

Wednesday: Mostly sunny, with a high near 90. Light and variable wind becoming southeast 5 to 7 mph in the afternoon.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 79.
Partly Cloudy

 Thursday

Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.
Mostly Sunny
then Slight
Chance
T-storms
 Thursday
Night
Thursday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 78.
Chance
T-storms

 Friday

Friday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Mostly Sunny
then Chance
T-storms
Hi 92 °F Lo 77 °F Hi 94 °F Lo 77 °F Hi 90 °F Lo 79 °F Hi 90 °F Lo 78 °F Hi 92 °F

 

Today
 
 A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 92. Heat index values as high as 103. West wind around 10 mph.
Tonight
 
 Mostly clear, with a low around 77. Southwest wind around 9 mph.
Tuesday
 
 A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 94. Heat index values as high as 106. West wind around 11 mph.
Tuesday Night
 
 A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 77. West wind 6 to 8 mph. Chance of precipitation is 40%.
Wednesday
 
 Mostly sunny, with a high near 90. Light and variable wind becoming southeast 5 to 7 mph in the afternoon.
Wednesday Night
 
 Partly cloudy, with a low around 79.
Thursday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.
Thursday Night
 
 A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 78.
Friday
 
 A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Friday Night
 
 A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 79.
Saturday
 
 Mostly sunny, with a high near 94.
Saturday Night
 
 Mostly clear, with a low around 80.
Sunday
 
 Sunny, with a high near 96.

 

Forecast from NOAA-NWS for Hilton Head Island SC.