Smyrna, SC Weather & Growing Conditions
This Afternoon
82°F
Showers And Thunderstorms
Showers and thunderstorms before 4pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 82. Northeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Showers And Thunderstorms | 5 mph NE | 86% |
| Tonight | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 mph NE | 55% |
| Wednesday | 84°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 3 mph SSE | 62% |
| Wednesday Night | 68°F | Showers And Thunderstorms | 2 mph W | 79% |
| Thursday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 58% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph W | 53% |
| Friday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph SW | 34% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 2 mph W | 34% |
| Saturday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph SW | 28% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 1 mph W | 28% |
| Sunday | 89°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 mph WSW | 30% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 1 mph WNW | 30% |
| Monday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph WSW | 22% |
| Monday Night | 71°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph WNW | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Smyrna, SC
Last spring frost
Apr 20
First fall frost
Oct 24
Growing season
186 days
Hardiness zone
8a
Explore more for Smyrna, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Ninety Nine Is, Sc (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.