Cottage Grove, TN Weather & Growing Conditions
Today
68°F
Mostly Sunny
Mostly sunny. High near 68, with temperatures falling to around 60 in the afternoon. West southwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Tonight | 43°F | Partly Cloudy then Patchy Fog | 0 to 5 mph SW | 0% |
| Thursday | 67°F | Patchy Fog then Sunny | 0 to 5 mph SW | 0% |
| Thursday Night | 44°F | Areas Of Fog | 0 to 5 mph NNW | 0% |
| Friday | 60°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Friday Night | 36°F | Mostly Clear | 5 to 10 mph N | 0% |
| Saturday | 55°F | Sunny | 5 mph N | 0% |
| Saturday Night | 34°F | Partly Cloudy | 0 mph | 0% |
| Sunday | 58°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 33°F | Mostly Clear | 0 mph | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 36°F | Clear | 0 mph | 1% |
| Tuesday | 66°F | Sunny | 0 to 5 mph WSW | 1% |
| Tuesday Night | 39°F | Mostly Clear | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cottage Grove, TN
Last spring frost
Apr 7
First fall frost
Oct 31
Growing season
206 days
Hardiness zone
7b
Explore more for Cottage Grove, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Paris 2 Se, Tn (12.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.