Thomaston, GA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thomaston, a city in Upson County, Georgia.
Today
93°F
Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Heat index values as high as 100. North wind around 0 mph. Chance of precipitation is 40%.
7-day forecast for Thomaston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Sunny then Chance Showers And Thunderstorms | 0 mph | 39% |
| Tonight | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 35% |
| Sunday | 91°F | Mostly Sunny | 0 mph | 14% |
| Sunday Night | 69°F | Mostly Clear | 0 mph | 7% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 26% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 43% |
| Tuesday | 88°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph NE | 48% |
| Tuesday Night | 68°F | Chance Showers And Thunderstorms | 5 mph NE | 48% |
| Wednesday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph NE | 31% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph NE | 31% |
| Thursday | 82°F | Mostly Sunny | 5 to 10 mph NE | 9% |
| Thursday Night | 62°F | Partly Cloudy | 5 to 10 mph NE | 9% |
| Friday | 82°F | Mostly Sunny | 5 mph N | 6% |
| Friday Night | 61°F | Mostly Clear | 5 mph NE | 6% |
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 Sep 19, 2026.