Hanahan, SC Weather & Growing Conditions
Today
91°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. North wind around 3 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 | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph N | 54% |
| Tonight | 73°F | Chance Showers And Thunderstorms | 3 mph NE | 45% |
| Sunday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 3 mph NE | 42% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph E | 28% |
| Monday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 26% |
| Monday Night | 73°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 32% |
| Tuesday | 87°F | Showers And Thunderstorms Likely | 2 to 6 mph NE | 68% |
| Tuesday Night | 71°F | Showers And Thunderstorms Likely | 3 to 7 mph NE | 68% |
| Wednesday | 84°F | Chance Rain Showers then Chance Showers And Thunderstorms | 10 mph NE | 48% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms | 10 mph N | 48% |
| Thursday | 83°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 12 mph N | 21% |
| Thursday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 to 10 mph NE | 21% |
| Friday | 82°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 9 mph NE | 23% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph NE | 23% |
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 Sep 19, 2026.