Collinwood, TN Weather & Growing Conditions
Today
88°F
Mostly Sunny
Mostly sunny. High near 88, with temperatures falling to around 84 in the afternoon. North wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Mostly Sunny | 0 to 5 mph N | 11% |
| Tonight | 68°F | Patchy Fog | 0 mph | 6% |
| Wednesday | 89°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 mph | 19% |
| Wednesday Night | 69°F | Patchy Fog | 0 mph | 12% |
| Thursday | 91°F | Sunny | 0 to 5 mph SSW | 5% |
| Thursday Night | 71°F | Partly Cloudy | 0 mph | 11% |
| Friday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 23% |
| Friday Night | 71°F | Slight Chance Showers And Thunderstorms | 0 mph | 23% |
| Saturday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 44% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 44% |
| Sunday | 90°F | Chance Showers And Thunderstorms | 0 mph | 29% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 29% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 25% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 25% |
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 Aug 4, 2026.