Hanahan, SC Weather & Growing Conditions
Today
90°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 103. East wind 1 to 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Chance Showers And Thunderstorms | 1 to 9 mph E | 52% |
| Tonight | 75°F | Chance Showers And Thunderstorms | 1 to 9 mph S | 46% |
| Wednesday | 90°F | Showers And Thunderstorms Likely then Partly Sunny | 1 to 10 mph S | 61% |
| Wednesday Night | 77°F | Chance Showers And Thunderstorms | 2 to 10 mph S | 29% |
| Thursday | 91°F | Showers And Thunderstorms Likely | 1 to 9 mph S | 60% |
| Thursday Night | 77°F | Chance Showers And Thunderstorms | 1 to 8 mph SE | 28% |
| Friday | 92°F | Chance Showers And Thunderstorms | 1 to 9 mph SE | 51% |
| Friday Night | 76°F | Chance Showers And Thunderstorms | 1 to 8 mph SE | 27% |
| Saturday | 91°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 8 mph SE | 65% |
| Saturday Night | 76°F | Chance Showers And Thunderstorms | 0 to 7 mph S | 42% |
| Sunday | 92°F | Chance Showers And Thunderstorms | 0 to 7 mph SW | 47% |
| Sunday Night | 76°F | Chance Showers And Thunderstorms | 1 to 7 mph SW | 45% |
| Monday | 94°F | Chance Showers And Thunderstorms | 1 to 7 mph SW | 43% |
| Monday Night | 77°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 7 mph SW | 43% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hanahan, SC
Last spring frost
Mar 7
First fall frost
Nov 27
Growing season
266 days
Hardiness zone
9a
Explore more for Hanahan, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Charleston Intl Ap, Sc (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.