Port Royal, SC Weather & Growing Conditions
Today
88°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. North wind 1 to 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph N | 36% |
| Tonight | 76°F | Chance Showers And Thunderstorms | 5 mph E | 41% |
| Sunday | 86°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 1 to 5 mph NE | 47% |
| Sunday Night | 76°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph SE | 31% |
| Monday | 86°F | Chance Showers And Thunderstorms | 2 to 7 mph NE | 32% |
| Monday Night | 76°F | Chance Showers And Thunderstorms | 2 to 7 mph E | 35% |
| Tuesday | 85°F | Showers And Thunderstorms Likely | 5 to 8 mph NE | 68% |
| Tuesday Night | 74°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 to 8 mph NE | 68% |
| Wednesday | 84°F | Chance Rain Showers then Chance Showers And Thunderstorms | 9 to 13 mph NE | 49% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 9 to 13 mph NE | 49% |
| Thursday | 83°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 14 mph NE | 23% |
| Thursday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 10 mph NE | 23% |
| Friday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 12 mph NE | 23% |
| Friday Night | 68°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph NE | 23% |
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 (2.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.