Smyrna, SC Weather & Growing Conditions
This Afternoon
88°F
Sunny
Sunny, with a high near 88. Northeast wind around 2 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 88°F | Sunny | 2 mph NE | 11% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 2 mph NE | 38% |
| Sunday | 88°F | Mostly Sunny | 1 mph S | 14% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 1 mph WNW | 16% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph SSW | 44% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 mph ENE | 74% |
| Tuesday | 81°F | Chance Rain Showers then Chance Showers And Thunderstorms | 3 mph NE | 76% |
| Tuesday Night | 65°F | Showers And Thunderstorms | 2 to 6 mph NE | 75% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 48% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 5 to 8 mph NNE | 33% |
| Thursday | 72°F | Chance Rain Showers | 8 mph NNE | 32% |
| Thursday Night | 59°F | Partly Cloudy | 2 to 6 mph NNE | 10% |
| Friday | 75°F | Mostly Sunny | 5 mph NNE | 7% |
| Friday Night | 57°F | Mostly Clear | 2 mph NNE | 7% |
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 Sep 19, 2026.