Jamestown, TN Weather & Growing Conditions
Today
88°F
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 3pm. Sunny. High near 88, with temperatures falling to around 84 in the afternoon. North northeast wind around 0 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 21% |
| Tonight | 68°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 mph | 21% |
| Wednesday | 87°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 mph | 53% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Patchy Fog | 0 mph | 37% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 47% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 47% |
| Friday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph SSW | 57% |
| Friday Night | 69°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 57% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 58% |
| Saturday Night | 69°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 mph | 58% |
| Sunday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 36% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 36% |
| Monday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 26% |
| Monday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 26% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jamestown, TN
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
175 days
Hardiness zone
7a
Explore more for Jamestown, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Pickett Sp, Tn (8.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.