Graysville, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Graysville, a town in Hamilton County, Tennessee.
Today
89°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Heat index values as high as 99. East wind around 0 mph. Chance of precipitation is 40%.
7-day forecast for Graysville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 mph | 39% |
| Tonight | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 39% |
| Wednesday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 59% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Thursday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 60% |
| Thursday Night | 71°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 mph | 60% |
| Friday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 44% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 0 mph | 44% |
| Saturday | 89°F | Showers And Thunderstorms Likely | 0 mph | 67% |
| Saturday Night | 71°F | Showers And Thunderstorms Likely | 0 mph | 67% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 mph | 44% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 44% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 mph | 47% |
| Monday Night | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 47% |
Forecast source: National Weather Service (api.weather.gov) for Graysville (35.449, -85.076). Updated through the day.
Growing snapshot for Graysville
Last spring frost
Apr 4
First fall frost
Oct 31
Growing season
208 days
Hardiness zone
7b
More local growing data for Graysville: nearby ZIP 37373 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Apison
Chattanooga
Collegedale
East Ridge
Fairmount
Falling Water
Flat Top Mountain
Harrison
Lakesite
Lone Oak
Lookout Mountain
Middle Valley
Mowbray Mountain
Ooltewah
Red Bank
Ridgeside
Sale Creek
Soddy-Daisy
Walden
Climate data from the nearest NOAA station, Dayton 2Se, Tn (7.1 mi from Graysville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.