Brentwood, TN Weather & Growing Conditions
This Afternoon
77°F
Partly Sunny
Partly sunny, with a high near 77. South southeast wind 15 to 20 mph, with gusts as high as 30 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Partly Sunny | 15 to 20 mph SSE | 3% |
| Tonight | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 15 mph SSE | 97% |
| Wednesday | 74°F | Showers And Thunderstorms | 5 to 15 mph SSW | 96% |
| Wednesday Night | 49°F | Partly Cloudy then Patchy Fog | 0 to 5 mph WSW | 0% |
| Thursday | 72°F | Patchy Fog then Mostly Sunny | 0 to 5 mph SW | 0% |
| Thursday Night | 47°F | Areas Of Fog | 0 mph | 0% |
| Friday | 69°F | Areas Of Fog then Mostly Sunny | 0 to 10 mph NNW | 3% |
| Friday Night | 42°F | Partly Cloudy | 5 mph NNW | 1% |
| Saturday | 61°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Saturday Night | 37°F | Partly Cloudy | 0 to 5 mph NNW | 1% |
| Sunday | 63°F | Mostly Sunny | 0 to 5 mph NW | 7% |
| Sunday Night | 36°F | Mostly Clear | 0 to 5 mph W | 7% |
| Monday | 64°F | Sunny | 0 to 5 mph W | 5% |
| Monday Night | 37°F | Mostly Clear | 0 to 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brentwood, TN
Last spring frost
Apr 15
First fall frost
Oct 26
Growing season
193 days
Hardiness zone
7b
Explore more for Brentwood, TN: full frost dates · planting calendar · Tennessee frost dates
Climate data from the nearest NOAA station, Brentwood, Tn (0.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.