Jamestown, TN Weather & Growing Conditions
Today
70°F
Showers And Thunderstorms
Showers and thunderstorms before 5pm, then a chance of showers and thunderstorms. Cloudy. High near 70, with temperatures falling to around 66 in the afternoon. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Showers And Thunderstorms | 5 to 15 mph S | 95% |
| Tonight | 54°F | Chance Rain Showers then Patchy Fog | 5 mph WSW | 29% |
| Thursday | 72°F | Patchy Fog then Mostly Sunny | 5 mph WSW | 0% |
| Thursday Night | 46°F | Partly Cloudy then Areas Of Fog | 0 mph | 1% |
| Friday | 69°F | Patchy Fog then Mostly Sunny | 0 to 5 mph NW | 1% |
| Friday Night | 42°F | Partly Cloudy | 0 to 5 mph NNW | 0% |
| Saturday | 59°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Saturday Night | 35°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 61°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 34°F | Mostly Clear | 0 mph | 2% |
| Monday | 64°F | Sunny | 0 to 5 mph WSW | 1% |
| Monday Night | 36°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 68°F | Sunny | 0 to 5 mph WSW | 2% |
| Tuesday Night | 38°F | Mostly Clear | 0 mph | 2% |
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 Nov 4, 2026.