Jamestown, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jamestown, a city in Fentress County, Tennessee.
Overnight
61°F
Slight Chance Showers And Thunderstorms
A chance of rain showers before 3am, then a slight chance of showers and thunderstorms between 3am and 4am, then showers and thunderstorms likely. Cloudy, with a low around 61. South southeast wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Jamestown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Slight Chance Showers And Thunderstorms | 15 mph SSE | 58% |
| Wednesday | 69°F | Showers And Thunderstorms | 10 to 15 mph S | 94% |
| Wednesday Night | 53°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph WSW | 43% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph WSW | 0% |
| Thursday Night | 45°F | Areas Of Fog | 0 mph | 1% |
| Friday | 66°F | Patchy Fog then Sunny | 0 to 5 mph NW | 2% |
| Friday Night | 40°F | Partly Cloudy | 5 mph NNW | 0% |
| Saturday | 56°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 33°F | Partly Cloudy | 0 to 5 mph NNE | 0% |
| Sunday | 57°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 32°F | Mostly Clear | 0 to 5 mph N | 2% |
| Monday | 60°F | Sunny | 0 to 5 mph WSW | 1% |
| Monday Night | 35°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 65°F | Sunny | 0 to 5 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Jamestown (36.431, -84.933). Updated through the day.
Growing snapshot for Jamestown
Last spring frost
Apr 20
First fall frost
Oct 22
Growing season
183 days
Hardiness zone
7a
More local growing data for Jamestown: nearby ZIP 38556 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jamestown, Tn (1.5 mi from Jamestown). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.