Seneca, SC Weather & Growing Conditions
Today
91°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 91. Heat index values as high as 100. East northeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph ENE | 49% |
| Tonight | 70°F | Chance Showers And Thunderstorms | 5 mph NE | 46% |
| Sunday | 89°F | Patchy Fog then Chance Showers And Thunderstorms | 2 mph ESE | 26% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 19% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph SSW | 37% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 3 mph ENE | 75% |
| Tuesday | 82°F | Chance Showers And Thunderstorms | 6 mph ENE | 69% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely | 6 to 9 mph ENE | 68% |
| Wednesday | 74°F | Chance Rain Showers | 12 mph NE | 48% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms | 12 mph NE | 34% |
| Thursday | 76°F | Mostly Sunny then Slight Chance Rain Showers | 8 mph NE | 16% |
| Thursday Night | 61°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 7 mph NE | 16% |
| Friday | 77°F | Mostly Sunny | 3 mph ENE | 14% |
| Friday Night | 60°F | Slight Chance Rain Showers | 5 mph ENE | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Seneca, SC
Last spring frost
Mar 21
First fall frost
Nov 11
Growing season
236 days
Hardiness zone
8b
Explore more for Seneca, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Clemson Oconee Co Ap, Sc (3.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.