Swansea, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Swansea, a town in Lexington County, South Carolina.
Today
78°F
Periods Of Rain Showers
Periods of rain showers before 2pm. Mostly cloudy, with a high near 78. Southeast wind 7 to 12 mph.
7-day forecast for Swansea
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Periods Of Rain Showers | 7 to 12 mph SE | 8% |
| Tonight | 65°F | Mostly Cloudy then Chance Light Rain | 3 to 10 mph S | 31% |
| Thursday | 82°F | Patchy Fog then Chance Light Rain | 3 to 7 mph S | 29% |
| Thursday Night | 63°F | Mostly Cloudy then Chance Light Rain | 2 mph S | 27% |
| Friday | 79°F | Light Rain Likely | 3 to 7 mph SW | 64% |
| Friday Night | 54°F | Mostly Clear | 3 mph NW | 12% |
| Saturday | 74°F | Sunny | 3 to 7 mph N | 1% |
| Saturday Night | 45°F | Partly Cloudy | 3 mph NE | 1% |
| Sunday | 71°F | Mostly Sunny | 5 mph N | 1% |
| Sunday Night | 42°F | Mostly Clear | 2 mph N | 2% |
| Monday | 71°F | Sunny | 5 mph N | 1% |
| Monday Night | 40°F | Mostly Clear | 2 mph NW | 2% |
| Tuesday | 72°F | Sunny | 1 to 6 mph W | 4% |
| Tuesday Night | 43°F | Mostly Clear | 3 mph W | 5% |
Forecast source: National Weather Service (api.weather.gov) for Swansea (33.740, -81.105). Updated through the day.
Growing snapshot for Swansea
Last spring frost
Mar 26
First fall frost
Nov 6
Growing season
227 days
Hardiness zone
8b
More local growing data for Swansea: nearby ZIP 29160 weather · frost dates · planting calendar · South Carolina frost dates
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All South Carolina locations ›
Climate data from the nearest NOAA station, N 5Ne, Sc (5.8 mi from Swansea). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.