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Thomaston, GA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Thomaston, a city in Upson County, Georgia.

This Afternoon
93°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 100. Southwest wind 0 to 5 mph. Chance of precipitation is 40%.

7-day forecast for Thomaston

WhenTempForecastWindPrecip
This Afternoon 93°F Chance Showers And Thunderstorms 0 to 5 mph SW 43%
Tonight 70°F Chance Showers And Thunderstorms 0 mph 48%
Sunday 91°F Patchy Fog then Slight Chance Showers And Thunderstorms 0 to 5 mph NE 21%
Sunday Night 69°F Slight Chance Showers And Thunderstorms then Mostly Clear 0 mph 20%
Monday 91°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 mph 17%
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 E 43%
Tuesday Night 68°F Chance Showers And Thunderstorms 5 mph NE 46%
Wednesday 84°F Chance Showers And Thunderstorms 5 mph NE 34%
Wednesday Night 65°F Chance Showers And Thunderstorms 5 to 10 mph NE 34%
Thursday 82°F Mostly Sunny 5 to 10 mph NE 13%
Thursday Night 62°F Mostly Clear 5 mph NE 13%
Friday 82°F Mostly Sunny 5 mph N 7%
Friday Night 61°F Mostly Clear 0 to 5 mph N 7%

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

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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.