Simpsonville, SC Weather & Growing Conditions
Tonight
70°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 3am, then patchy fog. Partly cloudy, with a low around 70. North northwest wind around 3 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Chance Showers And Thunderstorms | 3 mph NNW | 37% |
| Saturday | 89°F | Patchy Fog then Chance Showers And Thunderstorms | 2 to 7 mph NE | 40% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 2 to 7 mph NE | 48% |
| Sunday | 86°F | Patchy Fog then Chance Showers And Thunderstorms | 2 mph SE | 36% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph W | 31% |
| Monday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph SSW | 46% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph ENE | 64% |
| Tuesday | 80°F | Showers And Thunderstorms Likely | 5 to 8 mph NE | 66% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 66% |
| Wednesday | 74°F | Chance Rain Showers | 13 mph NE | 38% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 38% |
| Thursday | 75°F | Slight Chance Rain Showers then Partly Sunny | 12 mph NE | 18% |
| Thursday Night | 60°F | Partly Cloudy | 9 mph NE | 10% |
| Friday | 76°F | Mostly Sunny | 8 mph NE | 10% |
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 (6.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.