Trinity, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trinity, a city in Trinity County, Texas.
Tonight
70°F
Clear then Patchy Fog
Patchy fog after 5am. Clear, with a low around 70. Southeast wind around 0 mph.
7-day forecast for Trinity
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Clear then Patchy Fog | 0 mph | 0% |
| Saturday | 94°F | Patchy Fog then Sunny | 0 to 5 mph E | 0% |
| Saturday Night | 72°F | Mostly Clear | 0 to 5 mph S | 0% |
| Sunday | 94°F | Sunny | 0 to 5 mph S | 0% |
| Sunday Night | 74°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Monday | 94°F | Mostly Sunny | 0 mph | 10% |
| Monday Night | 73°F | Mostly Clear | 0 mph | 10% |
| Tuesday | 95°F | Slight Chance Rain Showers | 0 to 5 mph N | 15% |
| Tuesday Night | 74°F | Partly Cloudy | 0 to 5 mph NE | 6% |
| Wednesday | 93°F | Sunny | 0 to 5 mph NE | 4% |
| Wednesday Night | 73°F | Partly Cloudy | 0 to 5 mph E | 4% |
| Thursday | 91°F | Mostly Sunny | 5 mph NE | 1% |
| Thursday Night | 71°F | Mostly Clear | 0 to 5 mph E | 1% |
| Friday | 90°F | Sunny | 5 mph NE | 2% |
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 Sep 19, 2026.