West Union, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Union, a town in Oconee County, South Carolina.
Today
90°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 2pm and 4pm, then showers and thunderstorms likely. Mostly sunny, with a high near 90. Northeast wind 1 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for West Union
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph NE | 59% |
| Tonight | 69°F | Chance Showers And Thunderstorms | 3 mph NE | 50% |
| Sunday | 88°F | Patchy Fog then Chance Showers And Thunderstorms | 2 mph ESE | 38% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 24% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph SE | 48% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 mph ENE | 75% |
| Tuesday | 81°F | Chance Showers And Thunderstorms | 2 to 6 mph ENE | 72% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely | 7 mph ENE | 71% |
| Wednesday | 74°F | Chance Rain Showers | 9 mph ENE | 48% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 8 mph ENE | 36% |
| Thursday | 76°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 7 mph ENE | 20% |
| Thursday Night | 60°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph ENE | 20% |
| Friday | 77°F | Mostly Sunny then Slight Chance Rain Showers | 3 mph ENE | 21% |
| Friday Night | 60°F | Slight Chance Rain Showers | 2 mph ENE | 21% |
Forecast source: National Weather Service (api.weather.gov) for West Union (34.756, -83.044). Updated through the day.
Growing snapshot for West Union
Last spring frost
Apr 11
First fall frost
Oct 30
Growing season
203 days
Hardiness zone
8a
More local growing data for West Union: nearby ZIP 29691 weather · frost dates · planting calendar · South Carolina frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Walhalla, Sc (2 mi from West Union). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.