Alexandria, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alexandria, a town in Dekalb County, Tennessee.
This Afternoon
73°F
Partly Sunny
Partly sunny. High near 73, with temperatures falling to around 68 in the afternoon. Southwest wind around 5 mph. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Alexandria
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Partly Sunny | 5 mph SW | 9% |
| Tonight | 45°F | Areas Of Fog | 0 to 5 mph WSW | 2% |
| Thursday | 68°F | Areas Of Fog then Partly Sunny | 0 to 5 mph W | 0% |
| Thursday Night | 38°F | Areas Of Fog | 0 mph | 0% |
| Friday | 65°F | Areas Of Fog then Sunny | 0 to 10 mph NNW | 0% |
| Friday Night | 33°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Saturday | 57°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 27°F | Mostly Clear | 0 to 5 mph N | 0% |
| Sunday | 60°F | Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 27°F | Mostly Clear | 0 mph | 0% |
| Monday | 62°F | Sunny | 0 to 5 mph N | 0% |
| Monday Night | 28°F | Mostly Clear | 0 mph | 3% |
| Tuesday | 64°F | Mostly Sunny | 0 to 5 mph NNW | 2% |
| Tuesday Night | 31°F | Mostly Clear | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Alexandria (36.079, -86.038). Updated through the day.
Growing snapshot for Alexandria
Last spring frost
Apr 3
First fall frost
Nov 4
Growing season
215 days
Hardiness zone
7b
More local growing data for Alexandria: nearby ZIP 37012 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lancaster Edgar Evins Marina, Tn (10.1 mi from Alexandria). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.