Port Royal, SC Weather & Growing Conditions
Today
87°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 87. Southwest wind 2 to 12 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 12 mph SW | 23% |
| Tonight | 78°F | Chance Showers And Thunderstorms | 5 to 12 mph S | 51% |
| Wednesday | 87°F | Chance Showers And Thunderstorms | 3 to 13 mph S | 30% |
| Wednesday Night | 80°F | Chance Showers And Thunderstorms | 6 to 12 mph S | 36% |
| Thursday | 87°F | Chance Showers And Thunderstorms | 2 to 10 mph S | 42% |
| Thursday Night | 80°F | Chance Showers And Thunderstorms | 3 to 10 mph SE | 26% |
| Friday | 88°F | Chance Showers And Thunderstorms | 3 to 13 mph SE | 51% |
| Friday Night | 78°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 12 mph SE | 31% |
| Saturday | 89°F | Showers And Thunderstorms Likely | 3 to 9 mph SE | 65% |
| Saturday Night | 78°F | Chance Showers And Thunderstorms | 2 to 8 mph S | 37% |
| Sunday | 91°F | Chance Showers And Thunderstorms | 1 to 7 mph SW | 42% |
| Sunday Night | 78°F | Chance Showers And Thunderstorms | 3 to 7 mph S | 42% |
| Monday | 92°F | Chance Showers And Thunderstorms | 2 to 8 mph SW | 36% |
| Monday Night | 79°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 36% |
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 Aug 4, 2026.