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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.

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

WhenTempForecastWindPrecip
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

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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.