Trenton, SC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trenton, a town in Edgefield County, South Carolina.
Tonight
70°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am, then patchy fog. Mostly cloudy, with a low around 70. East wind around 3 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Trenton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Chance Showers And Thunderstorms | 3 mph E | 36% |
| Sunday | 89°F | Areas Of Fog then Partly Sunny | 3 mph E | 13% |
| Sunday Night | 70°F | Mostly Clear | 2 mph SE | 12% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph S | 22% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 mph SE | 52% |
| Tuesday | 86°F | Showers And Thunderstorms Likely | 2 to 6 mph E | 67% |
| Tuesday Night | 69°F | Showers And Thunderstorms Likely | 5 to 8 mph NE | 67% |
| Wednesday | 81°F | Chance Showers And Thunderstorms | 8 to 13 mph NE | 37% |
| Wednesday Night | 63°F | Chance Showers And Thunderstorms | 13 mph NE | 37% |
| Thursday | 78°F | Slight Chance Rain Showers then Partly Sunny | 12 mph NE | 16% |
| Thursday Night | 61°F | Partly Cloudy | 7 to 10 mph NE | 11% |
| Friday | 79°F | Mostly Sunny | 8 mph N | 6% |
| Friday Night | 59°F | Mostly Clear | 6 mph NE | 6% |
| Saturday | 79°F | Mostly Sunny | 7 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Trenton (33.741, -81.841). Updated through the day.
Growing snapshot for Trenton
Last spring frost
Mar 26
First fall frost
Nov 8
Growing season
228 days
Hardiness zone
8a
More local growing data for Trenton: nearby ZIP 29847 weather · frost dates · planting calendar · South Carolina frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Johnston 4 Sw, Sc (4.9 mi from Trenton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.