Blenheim, SC Weather & Growing Conditions
Today
88°F
Patchy Fog then Slight Chance Showers And Thunderstorms
Patchy fog before 9am, then a slight chance of showers and thunderstorms between 2pm and 5pm. Partly sunny, with a high near 88. Northeast wind 2 to 8 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 2 to 8 mph NE | 21% |
| Tonight | 69°F | Partly Cloudy | 1 to 7 mph E | 11% |
| Sunday | 89°F | Mostly Sunny | 2 mph NE | 10% |
| Sunday Night | 70°F | Partly Cloudy | 2 mph SE | 9% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph SE | 27% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 3 mph E | 54% |
| Tuesday | 86°F | Showers And Thunderstorms Likely | 3 to 7 mph NE | 58% |
| Tuesday Night | 67°F | Showers And Thunderstorms Likely | 5 to 10 mph NE | 58% |
| Wednesday | 77°F | Chance Showers And Thunderstorms | 10 to 14 mph NE | 37% |
| Wednesday Night | 64°F | Chance Showers And Thunderstorms | 8 to 13 mph NE | 37% |
| Thursday | 77°F | Slight Chance Rain Showers | 10 to 14 mph N | 15% |
| Thursday Night | 61°F | Partly Cloudy | 6 to 12 mph NE | 12% |
| Friday | 78°F | Mostly Sunny then Slight Chance Rain Showers | 9 mph N | 17% |
| Friday Night | 59°F | Slight Chance Rain Showers | 3 to 7 mph NE | 17% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Blenheim, SC
Last spring frost
Mar 22
First fall frost
Nov 10
Growing season
235 days
Hardiness zone
8b
Explore more for Blenheim, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Florence 8 Ne, Sc (12.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.