Thomaston, GA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thomaston, a city in Upson County, Georgia.
Today
88°F
Showers And Thunderstorms Likely
Patchy fog before 8am, then showers and thunderstorms likely. Mostly sunny. High near 88, with temperatures falling to around 83 in the afternoon. Southwest wind around 0 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Thomaston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Showers And Thunderstorms Likely | 0 mph | 58% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 33% |
| Wednesday | 88°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SW | 56% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 32% |
| Thursday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 41% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 41% |
| Friday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 31% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 31% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 0 mph | 32% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms | 0 mph | 32% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 0 mph | 44% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 44% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 mph | 37% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 37% |
Forecast source: National Weather Service (api.weather.gov) for Thomaston (32.892, -84.327). Updated through the day.
Growing snapshot for Thomaston
Last spring frost
Mar 23
First fall frost
Nov 12
Growing season
234 days
Hardiness zone
8b
More local growing data for Thomaston: nearby ZIP 30286 weather · frost dates · planting calendar · Georgia frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Thomaston 4Se, Ga (4.1 mi from Thomaston). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.