Alexandria, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alexandria, a town in Dekalb County, Tennessee.
Today
88°F
Patchy Fog then Sunny
Patchy fog before 7am. Sunny, with a high near 88. North northeast wind 0 to 5 mph.
7-day forecast for Alexandria
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 88°F | Patchy Fog then Sunny | 0 to 5 mph NNE | 14% |
| Tonight | 68°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 to 5 mph NNE | 15% |
| Wednesday | 88°F | Chance Showers And Thunderstorms | 0 mph | 47% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms then Patchy Fog | 0 mph | 32% |
| Thursday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 27% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 27% |
| Friday | 90°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph SSW | 38% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 38% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 57% |
| Saturday Night | 69°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 mph | 57% |
| Sunday | 89°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 36% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 36% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 25% |
| Monday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSW | 25% |
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 Aug 4, 2026.