New Union, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Union, a community in Coffee County, Tennessee.
Today
69°F
Showers And Thunderstorms
Showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Cloudy. High near 69, with temperatures falling to around 65 in the afternoon. South wind 5 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for New Union
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Showers And Thunderstorms | 5 to 15 mph S | 93% |
| Tonight | 48°F | Areas Of Fog | 0 to 5 mph W | 4% |
| Thursday | 72°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph WNW | 0% |
| Thursday Night | 43°F | Areas Of Fog | 0 mph | 0% |
| Friday | 69°F | Areas Of Fog then Sunny | 0 to 10 mph NNW | 1% |
| Friday Night | 37°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 59°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 31°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 58°F | Mostly Sunny | 0 to 10 mph N | 0% |
| Sunday Night | 31°F | Mostly Clear | 0 to 5 mph N | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph N | 0% |
| Monday Night | 32°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 66°F | Sunny | 0 to 5 mph W | 2% |
| Tuesday Night | 34°F | Mostly Clear | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov) for New Union (35.534, -86.083). Updated through the day.
Growing snapshot for New Union
Last spring frost
Apr 13
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
7b
More local growing data for New Union: nearby ZIP 37355 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Manchester #2, Tn (0.6 mi from New Union). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.