Collinwood, TN Weather & Growing Conditions
Today
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 103. West northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 0 to 5 mph WNW | 4% |
| Tonight | 72°F | Mostly Clear | 0 mph | 2% |
| Sunday | 97°F | Sunny then Slight Chance Rain Showers | 0 to 5 mph SW | 18% |
| Sunday Night | 72°F | Mostly Clear | 0 mph | 10% |
| Monday | 96°F | Mostly Sunny | 0 to 5 mph SW | 12% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 25% |
| Tuesday | 92°F | Patchy Fog then Chance Showers And Thunderstorms | 0 to 5 mph NE | 35% |
| Tuesday Night | 65°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 35% |
| Wednesday | 85°F | Slight Chance Rain Showers | 5 mph N | 22% |
| Wednesday Night | 62°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph NNE | 22% |
| Thursday | 83°F | Mostly Sunny | 5 mph NNE | 7% |
| Thursday Night | 60°F | Partly Cloudy | 0 to 5 mph NNE | 7% |
| Friday | 83°F | Mostly Sunny | 5 to 10 mph NNE | 4% |
| Friday Night | 59°F | Partly Cloudy | 5 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Collinwood, TN
Last spring frost
Apr 14
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
7b
Explore more for Collinwood, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Waynesboro, Tn (15.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.