Union City, TN Weather & Growing Conditions
Overnight
60°F
Chance Rain Showers
A chance of rain showers before 3am. Mostly cloudy, with a low around 60. Southwest wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Chance Rain Showers | 5 mph SW | 28% |
| Wednesday | 67°F | Partly Sunny | 5 to 10 mph WSW | 0% |
| Wednesday Night | 43°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Thursday | 69°F | Sunny | 0 to 5 mph WSW | 0% |
| Thursday Night | 44°F | Partly Cloudy | 0 mph | 0% |
| Friday | 63°F | Mostly Sunny | 0 to 10 mph NNW | 0% |
| Friday Night | 37°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 57°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 33°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 60°F | Mostly Sunny | 0 to 10 mph N | 0% |
| Sunday Night | 33°F | Mostly Clear | 0 mph | 0% |
| Monday | 64°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 35°F | Clear | 0 mph | 1% |
| Tuesday | 67°F | Sunny | 0 to 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Union City, TN
Last spring frost
Apr 3
First fall frost
Oct 29
Growing season
208 days
Hardiness zone
7b
Explore more for Union City, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Union City, Tn (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.