Port Royal, SC Weather & Growing Conditions
Today
78°F
Partly Sunny
Partly sunny, with a high near 78. Southeast wind 6 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Partly Sunny | 6 to 10 mph SE | 1% |
| Tonight | 68°F | Mostly Cloudy | 1 to 5 mph SE | 5% |
| Thursday | 79°F | Patchy Fog then Mostly Sunny | 1 to 6 mph S | 5% |
| Thursday Night | 68°F | Partly Cloudy | 3 mph S | 3% |
| Friday | 79°F | Chance Rain Showers | 3 to 7 mph SW | 40% |
| Friday Night | 61°F | Chance Rain Showers then Partly Cloudy | 2 to 6 mph W | 40% |
| Saturday | 75°F | Sunny | 6 mph N | 1% |
| Saturday Night | 55°F | Partly Cloudy | 2 to 6 mph NE | 1% |
| Sunday | 71°F | Mostly Sunny | 2 to 7 mph NE | 2% |
| Sunday Night | 53°F | Partly Cloudy | 1 to 5 mph NE | 5% |
| Monday | 69°F | Mostly Sunny | 6 mph N | 6% |
| Monday Night | 51°F | Slight Chance Rain Showers | 3 mph N | 15% |
| Tuesday | 71°F | Slight Chance Rain Showers then Sunny | 5 mph NE | 15% |
| Tuesday Night | 53°F | Mostly Clear | 3 mph NW | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Royal, SC
Last spring frost
Mar 3
First fall frost
Dec 9
Growing season
282 days
Hardiness zone
9a
Explore more for Port Royal, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Beaufort Wwtp, Sc (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.