Alexandria, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alexandria, a town in Dekalb County, Tennessee.
Today
71°F
Showers And Thunderstorms
Showers and thunderstorms before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm. Cloudy. High near 71, with temperatures falling to around 67 in the afternoon. South southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Alexandria
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Showers And Thunderstorms | 5 to 15 mph SSW | 95% |
| Tonight | 44°F | Areas Of Fog | 0 to 5 mph WSW | 3% |
| Thursday | 72°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph WSW | 0% |
| Thursday Night | 39°F | Areas Of Fog | 0 mph | 0% |
| Friday | 68°F | Areas Of Fog then Mostly Sunny | 0 to 10 mph NNW | 1% |
| Friday Night | 35°F | Partly Cloudy | 5 mph NNW | 0% |
| Saturday | 60°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 28°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Sunday | 59°F | Mostly Sunny | 0 to 5 mph N | 1% |
| Sunday Night | 27°F | Mostly Clear | 0 mph | 1% |
| Monday | 62°F | Sunny | 0 to 5 mph NNW | 0% |
| Monday Night | 29°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 68°F | Sunny | 0 to 5 mph WSW | 2% |
| Tuesday Night | 32°F | Mostly Clear | 0 mph | 0% |
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 4, 2026.