Jefferson City, TN Weather & Growing Conditions
Today
87°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny. High near 87, with temperatures falling to around 83 in the afternoon. North wind 0 to 5 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph N | 34% |
| Tonight | 68°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph E | 25% |
| Wednesday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 51% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 52% |
| Thursday | 86°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 51% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 to 5 mph SW | 51% |
| Friday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 44% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 44% |
| Saturday | 86°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph W | 49% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 49% |
| Sunday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 36% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 36% |
| Monday | 87°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 32% |
| Monday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 32% |
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 Aug 4, 2026.