Jefferson City, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jefferson City, a city in Jefferson County, Tennessee.
This Afternoon
92°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 92. Heat index values as high as 99. North wind around 0 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Jefferson City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 92°F | Slight Chance Showers And Thunderstorms | 0 mph | 18% |
| Tonight | 68°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 21% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 18% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms | 0 mph | 30% |
| Monday | 90°F | Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph W | 40% |
| Monday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph NE | 68% |
| Tuesday | 84°F | Showers And Thunderstorms | 0 to 5 mph W | 83% |
| Tuesday Night | 64°F | Showers And Thunderstorms | 0 to 5 mph N | 83% |
| Wednesday | 80°F | Showers And Thunderstorms | 0 to 5 mph N | 80% |
| Wednesday Night | 61°F | Showers And Thunderstorms | 0 to 5 mph N | 80% |
| Thursday | 78°F | Chance Rain Showers | 0 to 5 mph N | 40% |
| Thursday Night | 58°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 20% |
| Friday | 77°F | Mostly Sunny then Slight Chance Rain Showers | 0 to 5 mph N | 16% |
| Friday Night | 56°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph NE | 16% |
Forecast source: National Weather Service (api.weather.gov) for Jefferson City (36.121, -83.483). Updated through the day.
Growing snapshot for Jefferson City
Last spring frost
Apr 24
First fall frost
Oct 17
Growing season
175 days
Hardiness zone
7b
More local growing data for Jefferson City: nearby ZIP 37760 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jefferson City, Tn (1.3 mi from Jefferson City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.