Simpsonville, SC Weather & Growing Conditions
Overnight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. North northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Partly Cloudy | 3 mph NNE | 8% |
| Saturday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph NE | 28% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 7 mph NE | 33% |
| Sunday | 87°F | Patchy Fog then Mostly Sunny | 2 mph ESE | 11% |
| Sunday Night | 68°F | Partly Cloudy | 2 mph SW | 10% |
| Monday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph SW | 39% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 mph ENE | 76% |
| Tuesday | 79°F | Chance Showers And Thunderstorms | 5 to 9 mph NE | 66% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely | 10 mph NE | 65% |
| Wednesday | 70°F | Chance Showers And Thunderstorms | 14 mph NE | 50% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 31% |
| Thursday | 74°F | Mostly Sunny | 12 mph NE | 14% |
| Thursday Night | 60°F | Partly Cloudy | 7 to 10 mph NE | 12% |
| Friday | 75°F | Mostly Sunny | 6 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Simpsonville, SC
Last spring frost
Mar 29
First fall frost
Nov 5
Growing season
222 days
Hardiness zone
8a
Explore more for Simpsonville, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Fountain Inn 2 Sw, Sc (3.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.