Harman US

Jamestown, TN Weather & Growing Conditions

This Afternoon
90°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 90. South wind around 0 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 90°F Chance Showers And Thunderstorms 0 mph 28%
Tonight 68°F Chance Showers And Thunderstorms then Mostly Clear 0 to 5 mph SSE 28%
Sunday 89°F Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph WSW 18%
Sunday Night 68°F Slight Chance Showers And Thunderstorms 0 to 5 mph SSW 18%
Monday 88°F Mostly Sunny then Chance Showers And Thunderstorms 0 to 5 mph WSW 38%
Monday Night 65°F Chance Showers And Thunderstorms 0 mph 46%
Tuesday 82°F Showers And Thunderstorms 0 to 5 mph NNE 76%
Tuesday Night 62°F Showers And Thunderstorms 0 to 5 mph E 76%
Wednesday 76°F Rain Showers 0 to 5 mph SW 76%
Wednesday Night 59°F Showers And Thunderstorms 0 mph 76%
Thursday 74°F Chance Rain Showers 0 to 5 mph NW 41%
Thursday Night 56°F Chance Showers And Thunderstorms then Partly Cloudy 0 mph 26%
Friday 74°F Mostly Sunny 0 to 5 mph N 13%
Friday Night 54°F Partly Cloudy 0 to 5 mph N 13%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Jamestown, TN

Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
183 days
Hardiness zone
7a

Explore more for Jamestown, TN: full frost dates · planting calendar · Tennessee frost dates

Climate data from the nearest NOAA station, Jamestown, Tn (1.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.