Grimsley, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grimsley, a community in Fentress County, Tennessee.
Tonight
61°F
Mostly Cloudy then Rain Showers Likely
Rain showers likely after 1am. Mostly cloudy, with a low around 61. South southeast wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Grimsley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Mostly Cloudy then Rain Showers Likely | 15 mph SSE | 60% |
| Wednesday | 69°F | Showers And Thunderstorms | 10 to 15 mph S | 99% |
| Wednesday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph WSW | 34% |
| Thursday | 70°F | Patchy Fog then Mostly Sunny | 0 to 5 mph W | 3% |
| Thursday Night | 47°F | Areas Of Fog | 0 mph | 1% |
| Friday | 67°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph NW | 3% |
| Friday Night | 41°F | Partly Cloudy | 0 to 5 mph NNW | 1% |
| Saturday | 58°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 35°F | Mostly Cloudy | 0 to 5 mph NNW | 2% |
| Sunday | 59°F | Mostly Sunny | 0 to 5 mph NW | 7% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph W | 9% |
| Monday | 61°F | Sunny | 0 to 5 mph W | 8% |
| Monday Night | 35°F | Mostly Clear | 0 to 5 mph WSW | 1% |
| Tuesday | 64°F | Sunny | 5 mph WSW | 1% |
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 Nov 4, 2026.