Collinwood, TN Weather & Growing Conditions
This Afternoon
99°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Sunny, with a high near 99. Heat index values as high as 98. Northwest wind 0 to 5 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 18% |
| Tonight | 71°F | Mostly Clear | 0 mph | 9% |
| Sunday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph WSW | 18% |
| Sunday Night | 71°F | Mostly Clear | 0 mph | 10% |
| Monday | 96°F | Mostly Sunny | 0 to 5 mph WSW | 14% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 0 mph | 25% |
| Tuesday | 92°F | Patchy Fog then Chance Showers And Thunderstorms | 0 to 5 mph NE | 39% |
| Tuesday Night | 64°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 39% |
| Wednesday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNW | 16% |
| Wednesday Night | 61°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph N | 16% |
| Thursday | 84°F | Mostly Sunny | 5 mph NNE | 6% |
| Thursday Night | 60°F | Partly Cloudy | 0 to 5 mph NNE | 6% |
| Friday | 84°F | Mostly Sunny | 0 to 5 mph NNE | 2% |
| Friday Night | 59°F | Partly Cloudy | 0 to 5 mph NNE | 1% |
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 (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.