Seneca, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seneca, a city in Oconee County, South Carolina.
Overnight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. North wind around 1 mph.
7-day forecast for Seneca
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Partly Cloudy | 1 mph N | 10% |
| Saturday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph ENE | 47% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 3 mph NE | 52% |
| Sunday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 2 mph ENE | 52% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 mph N | 44% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph SSE | 52% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 mph ENE | 61% |
| Tuesday | 82°F | Showers And Thunderstorms Likely | 5 mph ENE | 67% |
| Tuesday Night | 66°F | Showers And Thunderstorms Likely | 5 to 8 mph NE | 67% |
| Wednesday | 77°F | Chance Rain Showers | 10 mph ENE | 47% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms | 8 to 12 mph ENE | 47% |
| Thursday | 77°F | Partly Sunny | 5 to 8 mph ENE | 13% |
| Thursday Night | 61°F | Partly Cloudy | 5 mph NE | 11% |
| Friday | 78°F | Mostly Sunny | 3 mph ENE | 13% |
Forecast source: National Weather Service (api.weather.gov) for Seneca (34.681, -82.966). Updated through the day.
Growing snapshot for Seneca
Last spring frost
Mar 21
First fall frost
Nov 11
Growing season
236 days
Hardiness zone
8b
More local growing data for Seneca: nearby ZIP 29678 weather · frost dates · planting calendar · South Carolina frost dates
Nearby towns & communities
All South Carolina locations ›
Climate data from the nearest NOAA station, Clemson Oconee Co Ap, Sc (3.9 mi from Seneca). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.