Collegedale, TN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Collegedale, a city in Hamilton County, Tennessee.

Overnight

63°F

Showers And Thunderstorms Likely

Showers and thunderstorms likely. Cloudy, with a low around 63. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Collegedale

When	Temp	Forecast	Wind	Precip
Overnight	63°F	Showers And Thunderstorms Likely	15 to 20 mph S	69%
Wednesday	69°F	Showers And Thunderstorms	10 to 20 mph S	90%
Wednesday Night	60°F	Showers And Thunderstorms	0 to 10 mph SW	94%
Thursday	73°F	Partly Sunny	0 to 5 mph W	3%
Thursday Night	50°F	Partly Cloudy	0 mph	3%
Friday	71°F	Sunny	0 to 10 mph N	2%
Friday Night	45°F	Mostly Clear	5 to 10 mph N	1%
Saturday	62°F	Mostly Sunny	10 mph N	0%
Saturday Night	38°F	Partly Cloudy	5 to 10 mph N	0%
Sunday	61°F	Mostly Sunny	5 mph N	0%
Sunday Night	36°F	Mostly Clear	5 mph N	1%
Monday	63°F	Sunny	5 mph N	1%
Monday Night	36°F	Mostly Clear	0 to 5 mph N	1%
Tuesday	66°F	Sunny	0 to 5 mph NW	2%

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

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 Nov 4, 2026.