Trenton, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trenton, a city in Fannin County, Texas.
This Afternoon
98°F
Sunny
Sunny. High near 98, with temperatures falling to around 96 in the afternoon. Heat index values as high as 97. South wind around 10 mph.
7-day forecast for Trenton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 10 mph S | 0% |
| Tonight | 73°F | Clear | 5 to 10 mph S | 0% |
| Saturday | 97°F | Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 73°F | Mostly Clear | 10 mph S | 0% |
| Sunday | 97°F | Mostly Sunny | 10 mph S | 9% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 5 mph S | 46% |
| Monday | 94°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 mph WSW | 46% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph NE | 19% |
| Tuesday | 92°F | Mostly Sunny | 10 mph NNE | 11% |
| Tuesday Night | 68°F | Partly Cloudy | 10 mph NE | 7% |
| Wednesday | 91°F | Mostly Sunny | 10 mph ENE | 8% |
| Wednesday Night | 68°F | Partly Cloudy | 5 to 10 mph ENE | 2% |
| Thursday | 91°F | Sunny | 5 to 10 mph E | 6% |
| Thursday Night | 68°F | Partly Cloudy | 5 to 10 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov) for Trenton (33.426, -96.345). Updated through the day.
Growing snapshot for Trenton
Last spring frost
Mar 16
First fall frost
Nov 13
Growing season
242 days
Hardiness zone
8a
More local growing data for Trenton: nearby ZIP 75490 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bonham 3Nne, Tx (16.2 mi from Trenton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.