Alexandria, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alexandria, a town in Dekalb County, Tennessee.
This Afternoon
97°F
Sunny
Sunny, with a high near 97. Heat index values as high as 105. North northwest wind around 5 mph.
7-day forecast for Alexandria
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Sunny | 5 mph NNW | 10% |
| Tonight | 69°F | Mostly Clear | 0 mph | 11% |
| Saturday | 97°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 15% |
| Saturday Night | 70°F | Partly Cloudy | 0 to 5 mph SSE | 10% |
| Sunday | 96°F | Mostly Sunny | 5 mph SSW | 6% |
| Sunday Night | 69°F | Partly Cloudy | 0 mph | 6% |
| Monday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 36% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 49% |
| Tuesday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 61% |
| Tuesday Night | 63°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 61% |
| Wednesday | 82°F | Chance Rain Showers | 0 to 5 mph NNW | 37% |
| Wednesday Night | 59°F | Chance Rain Showers | 0 to 5 mph N | 33% |
| Thursday | 79°F | Slight Chance Rain Showers then Mostly Sunny | 0 to 10 mph N | 16% |
| Thursday Night | 58°F | Partly Cloudy | 0 to 5 mph NNE | 9% |
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 Sep 19, 2026.