St. Stephen, SC Weather & Growing Conditions
This Afternoon
90°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 2pm and 3pm, then showers and thunderstorms likely between 3pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Northeast wind around 2 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 90°F | Chance Showers And Thunderstorms | 2 mph NE | 60% |
| Tonight | 70°F | Chance Showers And Thunderstorms | 1 mph NE | 57% |
| Sunday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph NE | 33% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 34% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph E | 28% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 1 mph E | 30% |
| Tuesday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 3 mph NE | 65% |
| Tuesday Night | 68°F | Showers And Thunderstorms Likely | 0 to 5 mph NE | 65% |
| Wednesday | 83°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 8 mph NE | 41% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 41% |
| Thursday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 8 mph N | 16% |
| Thursday Night | 63°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 7 mph NE | 16% |
| Friday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 6 mph N | 21% |
| Friday Night | 61°F | Slight Chance Showers And Thunderstorms | 0 to 3 mph NE | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Stephen, SC
Last spring frost
Mar 10
First fall frost
Nov 26
Growing season
265 days
Hardiness zone
8b
Explore more for St. Stephen, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Moncks Corner 4 N, Sc (11 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.