Big Sandy, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Big Sandy, a town in Benton County, Tennessee.
Tonight
59°F
Showers And Thunderstorms
A slight chance of rain showers between 8pm and 9pm, then showers and thunderstorms. Mostly cloudy. Low around 59, with temperatures rising to around 62 overnight. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Big Sandy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Showers And Thunderstorms | 5 to 15 mph S | 100% |
| Wednesday | 71°F | Chance Rain Showers then Partly Sunny | 5 to 10 mph WSW | 37% |
| Wednesday Night | 45°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Thursday | 70°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Thursday Night | 46°F | Partly Cloudy | 0 mph | 0% |
| Friday | 66°F | Mostly Sunny | 0 to 5 mph NNW | 3% |
| Friday Night | 41°F | Partly Cloudy | 5 mph NNW | 1% |
| Saturday | 59°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 37°F | Mostly Cloudy | 0 mph | 1% |
| Sunday | 61°F | Mostly Sunny | 0 to 5 mph NW | 7% |
| Sunday Night | 35°F | Mostly Clear | 0 to 5 mph W | 6% |
| Monday | 64°F | Sunny | 0 to 5 mph W | 2% |
| Monday Night | 37°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 68°F | Sunny | 0 to 5 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Big Sandy (36.233, -88.085). Updated through the day.
Growing snapshot for Big Sandy
Last spring frost
Apr 8
First fall frost
Oct 29
Growing season
202 days
Hardiness zone
7b
More local growing data for Big Sandy: nearby ZIP 38221 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Big Sandy, Tn (2.8 mi from Big Sandy). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.