Petros, TN Weather & Growing Conditions
Overnight
60°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy, with a low around 60. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Slight Chance Rain Showers | 10 mph S | 24% |
| Wednesday | 67°F | Showers And Thunderstorms | 10 to 15 mph S | 97% |
| Wednesday Night | 57°F | Showers And Thunderstorms then Mostly Cloudy | 0 to 10 mph SW | 99% |
| Thursday | 70°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Thursday Night | 50°F | Partly Cloudy | 0 mph | 3% |
| Friday | 68°F | Sunny | 0 to 5 mph NW | 3% |
| Friday Night | 45°F | Partly Cloudy | 5 mph N | 2% |
| Saturday | 57°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 38°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 58°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 37°F | Mostly Clear | 0 to 5 mph N | 1% |
| Monday | 60°F | Sunny | 0 mph | 1% |
| Monday Night | 39°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 64°F | Sunny | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Petros, TN
Last spring frost
Mar 31
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
7a
Explore more for Petros, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Oak Ridge Asos, Tn (13.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.