Collegedale, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Collegedale, a city in Hamilton County, Tennessee.
Today
87°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 87. Northeast wind 0 to 5 mph. Chance of precipitation is 40%.
7-day forecast for Collegedale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 42% |
| Tonight | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 37% |
| Wednesday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 54% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 49% |
| Thursday | 88°F | Chance Showers And Thunderstorms | 5 mph S | 43% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 43% |
| Friday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph S | 33% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 33% |
| Saturday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 57% |
| Saturday Night | 71°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 57% |
| Sunday | 88°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 41% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph S | 41% |
| Monday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 39% |
| Monday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 39% |
Forecast source: National Weather Service (api.weather.gov) for Collegedale (35.053, -85.048). Updated through the day.
Growing snapshot for Collegedale
Last spring frost
Mar 24
First fall frost
Nov 9
Growing season
230 days
Hardiness zone
8a
More local growing data for Collegedale: nearby ZIP 37315 weather · frost dates · planting calendar · Tennessee frost dates
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Climate data from the nearest NOAA station, Chattanooga Lovell Ap, Tn (8.5 mi from Collegedale). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.