Jefferson City, TN Weather & Growing Conditions
Tonight
67°F
Slight Chance Showers And Thunderstorms then Partly Cloudy
A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 67. East 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 |
|---|---|---|---|---|
| Tonight | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 18% |
| Sunday | 90°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 15% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 18% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 35% |
| Monday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph NE | 59% |
| Tuesday | 85°F | Showers And Thunderstorms | 0 to 5 mph N | 83% |
| Tuesday Night | 64°F | Showers And Thunderstorms | 0 to 5 mph NE | 83% |
| Wednesday | 80°F | Showers And Thunderstorms | 0 to 5 mph NE | 83% |
| Wednesday Night | 61°F | Showers And Thunderstorms | 0 to 5 mph NE | 83% |
| Thursday | 77°F | Rain Showers Likely | 0 to 5 mph NE | 62% |
| Thursday Night | 58°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 42% |
| Friday | 77°F | Slight Chance Rain Showers | 0 to 5 mph N | 19% |
| Friday Night | 56°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 19% |
| Saturday | 76°F | Mostly Sunny | 0 to 5 mph NE | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jefferson City, TN
Last spring frost
Apr 24
First fall frost
Oct 17
Growing season
175 days
Hardiness zone
7b
Explore more for Jefferson City, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Jefferson City, Tn (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.