Maynardville, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Maynardville, a city in Union County, Tennessee.
Today
71°F
Showers And Thunderstorms
A chance of rain showers before 10am, then showers and thunderstorms. Cloudy. High near 71, with temperatures falling to around 67 in the afternoon. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Maynardville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Showers And Thunderstorms | 5 to 15 mph S | 88% |
| Tonight | 60°F | Showers And Thunderstorms | 0 to 5 mph SW | 87% |
| Thursday | 73°F | Partly Sunny | 0 to 5 mph W | 7% |
| Thursday Night | 49°F | Partly Cloudy | 0 mph | 6% |
| Friday | 71°F | Sunny | 0 to 5 mph NW | 6% |
| Friday Night | 44°F | Partly Cloudy | 0 to 5 mph NW | 1% |
| Saturday | 61°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 36°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 61°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph N | 0% |
| Monday | 63°F | Sunny | 0 mph | 1% |
| Monday Night | 35°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 67°F | Sunny | 0 mph | 2% |
| Tuesday Night | 37°F | Mostly Clear | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Maynardville (36.247, -83.806). Updated through the day.
Growing snapshot for Maynardville
Last spring frost
Apr 22
First fall frost
Oct 25
Growing season
184 days
Hardiness zone
7b
More local growing data for Maynardville: nearby ZIP 37807 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Norris, Tn (13.4 mi from Maynardville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.