Cowan, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cowan, a city in Franklin County, Tennessee.
This Afternoon
75°F
Partly Sunny
Partly sunny, with a high near 75. Southeast wind around 15 mph, with gusts as high as 30 mph.
7-day forecast for Cowan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Partly Sunny | 15 mph SE | 1% |
| Tonight | 64°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 15 mph SE | 92% |
| Wednesday | 73°F | Showers And Thunderstorms | 5 to 15 mph S | 96% |
| Wednesday Night | 55°F | Areas Of Fog | 0 mph | 11% |
| Thursday | 73°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph W | 2% |
| Thursday Night | 50°F | Partly Cloudy | 0 mph | 2% |
| Friday | 71°F | Sunny | 0 to 10 mph NNW | 1% |
| Friday Night | 44°F | Mostly Clear | 0 to 5 mph NNW | 1% |
| Saturday | 62°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 38°F | Mostly Cloudy | 0 to 5 mph N | 2% |
| Sunday | 63°F | Mostly Sunny | 0 to 5 mph NNW | 8% |
| Sunday Night | 37°F | Mostly Clear | 0 to 5 mph NNW | 8% |
| Monday | 64°F | Sunny | 0 to 5 mph NW | 4% |
| Monday Night | 39°F | Mostly Clear | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov) for Cowan (35.163, -86.014). Updated through the day.
Growing snapshot for Cowan
Last spring frost
Apr 6
First fall frost
Oct 29
Growing season
204 days
Hardiness zone
7b
More local growing data for Cowan: nearby ZIP 37318 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Winchester 5Se, Tn (3.1 mi from Cowan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.