Grimsley, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grimsley, a community in Fentress County, Tennessee.
Overnight
68°F
Patchy Fog
Patchy fog between 4am and 5am. Mostly clear, with a low around 68. South southeast wind around 0 mph.
7-day forecast for Grimsley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Patchy Fog | 0 mph | 1% |
| Saturday | 91°F | Patchy Fog then Chance Showers And Thunderstorms | 0 mph | 29% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph S | 21% |
| Sunday | 90°F | Mostly Sunny | 0 to 5 mph SW | 10% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSW | 21% |
| Monday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph WSW | 39% |
| Monday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 mph | 58% |
| Tuesday | 82°F | Showers And Thunderstorms | 0 to 5 mph W | 80% |
| Tuesday Night | 62°F | Showers And Thunderstorms | 0 mph | 80% |
| Wednesday | 75°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 72% |
| Wednesday Night | 59°F | Showers And Thunderstorms Likely | 0 mph | 72% |
| Thursday | 74°F | Chance Rain Showers | 0 to 5 mph NNW | 31% |
| Thursday Night | 56°F | Chance Rain Showers then Partly Cloudy | 0 to 5 mph NNE | 27% |
| Friday | 74°F | Mostly Sunny | 0 to 5 mph NNE | 11% |
Forecast source: National Weather Service (api.weather.gov) for Grimsley (36.276, -84.997). Updated through the day.
Growing snapshot for Grimsley
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
7a
More local growing data for Grimsley: nearby ZIP 38565 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Allardt, Tn (11.1 mi from Grimsley). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.