Harman US

Mount Pleasant, SC Weather & Growing Conditions

This Afternoon
80°F
Mostly Sunny
Mostly sunny. High near 80, with temperatures falling to around 74 in the afternoon. Southeast wind 5 to 8 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 80°F Mostly Sunny 5 to 8 mph SE 1%
Tonight 67°F Mostly Cloudy then Patchy Fog 3 mph SE 2%
Thursday 80°F Patchy Fog then Mostly Sunny 1 to 6 mph S 3%
Thursday Night 67°F Partly Cloudy 3 mph S 1%
Friday 79°F Chance Rain Showers 2 to 8 mph SW 40%
Friday Night 60°F Chance Showers And Thunderstorms then Mostly Cloudy 3 mph NW 40%
Saturday 75°F Mostly Sunny 3 to 7 mph NE 2%
Saturday Night 49°F Partly Cloudy 5 mph NE 0%
Sunday 69°F Mostly Sunny 2 to 7 mph NE 0%
Sunday Night 48°F Partly Cloudy 1 mph N 2%
Monday 70°F Sunny 2 mph NE 5%
Monday Night 48°F Partly Cloudy then Slight Chance Rain Showers 1 mph NE 15%
Tuesday 71°F Slight Chance Rain Showers 2 mph SE 15%
Tuesday Night 52°F Slight Chance Rain Showers 1 mph W 15%

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

Growing snapshot for Mount Pleasant, SC

Last spring frost
Mar 13
First fall frost
Nov 30
Growing season
262 days
Hardiness zone
9a

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

Climate data from the nearest NOAA station, Sullivans Is, Sc (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.