Harman US

Islandton, SC Weather & Growing Conditions

This Afternoon
91°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Heat index values as high as 101. Northeast wind around 1 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 91°F Chance Showers And Thunderstorms 1 mph NE 40%
Tonight 71°F Chance Showers And Thunderstorms then Partly Cloudy 1 mph E 39%
Sunday 89°F Partly Sunny then Slight Chance Showers And Thunderstorms 2 mph NE 18%
Sunday Night 70°F Slight Chance Showers And Thunderstorms then Partly Cloudy 1 mph NE 16%
Monday 90°F Mostly Sunny then Slight Chance Showers And Thunderstorms 1 mph E 18%
Monday Night 70°F Slight Chance Showers And Thunderstorms 1 mph SE 18%
Tuesday 88°F Partly Sunny then Showers And Thunderstorms Likely 2 mph NE 71%
Tuesday Night 69°F Showers And Thunderstorms Likely then Chance Showers And Thunderstorms 2 mph NE 71%
Wednesday 84°F Slight Chance Rain Showers then Chance Showers And Thunderstorms 3 to 8 mph NE 36%
Wednesday Night 65°F Chance Showers And Thunderstorms 3 to 7 mph NE 36%
Thursday 81°F Mostly Sunny 5 to 8 mph N 11%
Thursday Night 63°F Partly Cloudy 2 to 7 mph NE 11%
Friday 81°F Sunny 5 mph N 7%
Friday Night 62°F Partly Cloudy 0 to 3 mph NE 7%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Islandton, SC

Last spring frost
Mar 6
First fall frost
Nov 26
Growing season
267 days
Hardiness zone
8b

Explore more for Islandton, SC: full frost dates · planting calendar · South Carolina frost dates

Climate data from the nearest NOAA station, Hampton 1S, Sc (13.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.