Trinity, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trinity, a city in Trinity County, Texas.
This Afternoon
78°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 3pm. Mostly cloudy. High near 78, with temperatures falling to around 71 in the afternoon. Northwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Trinity
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Showers And Thunderstorms Likely | 5 to 10 mph NW | 70% |
| Tonight | 54°F | Mostly Clear | 5 mph NW | 0% |
| Wednesday | 74°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 51°F | Mostly Clear | 0 mph | 0% |
| Thursday | 76°F | Mostly Sunny then Chance Rain Showers | 0 to 5 mph SE | 26% |
| Thursday Night | 54°F | Slight Chance Rain Showers | 0 to 5 mph W | 24% |
| Friday | 75°F | Sunny | 5 mph N | 1% |
| Friday Night | 50°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Saturday | 70°F | Partly Sunny then Slight Chance Rain Showers | 5 mph N | 15% |
| Saturday Night | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph N | 15% |
| Sunday | 70°F | Mostly Sunny | 5 to 10 mph N | 5% |
| Sunday Night | 43°F | Mostly Clear | 0 to 5 mph N | 3% |
| Monday | 71°F | Sunny | 0 to 5 mph N | 4% |
| Monday Night | 43°F | Mostly Clear | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov) for Trinity (30.944, -95.374). Updated through the day.
Growing snapshot for Trinity
Last spring frost
Mar 2
First fall frost
Nov 26
Growing season
267 days
Hardiness zone
9a
More local growing data for Trinity: nearby ZIP 75862 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Groveton, Tx (19.2 mi from Trinity). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.