Harman US

Johnsonville, SC Weather & Growing Conditions

This Afternoon
89°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Northeast wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 89°F Chance Showers And Thunderstorms 7 mph NE 36%
Tonight 69°F Chance Showers And Thunderstorms then Patchy Fog 1 to 6 mph NE 30%
Sunday 89°F Areas Of Fog then Slight Chance Showers And Thunderstorms 1 to 6 mph E 17%
Sunday Night 70°F Partly Cloudy 0 to 3 mph SE 7%
Monday 91°F Mostly Sunny then Slight Chance Showers And Thunderstorms 2 mph SE 20%
Monday Night 70°F Slight Chance Showers And Thunderstorms 2 mph SE 24%
Tuesday 87°F Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 1 to 5 mph NE 72%
Tuesday Night 68°F Showers And Thunderstorms Likely 1 to 7 mph NE 72%
Wednesday 83°F Chance Rain Showers then Chance Showers And Thunderstorms 7 to 12 mph NE 39%
Wednesday Night 65°F Chance Showers And Thunderstorms then Mostly Cloudy 6 to 12 mph NE 39%
Thursday 81°F Partly Sunny then Slight Chance Showers And Thunderstorms 12 mph N 21%
Thursday Night 61°F Slight Chance Showers And Thunderstorms then Partly Cloudy 5 to 10 mph N 21%
Friday 80°F Mostly Sunny 8 mph N 8%
Friday Night 60°F Mostly Clear 2 to 6 mph N 8%

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

Growing snapshot for Johnsonville, SC

Last spring frost
Mar 23
First fall frost
Nov 15
Growing season
240 days
Hardiness zone
8b

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

Climate data from the nearest NOAA station, Hemingway 8 Ese, Sc (12 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.