Seneca, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seneca, a city in Oconee County, South Carolina.
This Afternoon
72°F
Mostly Sunny
Mostly sunny, with a high near 72. East wind around 8 mph.
7-day forecast for Seneca
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Mostly Sunny | 8 mph E | 1% |
| Tonight | 60°F | Mostly Cloudy | 7 mph ENE | 11% |
| Wednesday | 70°F | Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 7 mph E | 75% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 2 mph SSE | 100% |
| Thursday | 76°F | Chance Rain Showers | 1 to 5 mph SSW | 38% |
| Thursday Night | 57°F | Chance Rain Showers | 2 mph W | 36% |
| Friday | 76°F | Chance Rain Showers then Mostly Sunny | 1 to 5 mph WSW | 25% |
| Friday Night | 49°F | Mostly Clear | 1 to 5 mph WNW | 3% |
| Saturday | 72°F | Sunny | 1 mph NNE | 1% |
| Saturday Night | 46°F | Partly Cloudy | 2 mph NNE | 1% |
| Sunday | 68°F | Mostly Sunny | 2 mph SE | 7% |
| Sunday Night | 43°F | Mostly Clear | 3 mph W | 9% |
| Monday | 67°F | Sunny | 5 mph WSW | 8% |
| Monday Night | 41°F | Mostly Clear | 3 mph WNW | 2% |
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 Nov 3, 2026.