Thornton, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thornton, a town in Limestone County, Texas.
Overnight
70°F
Mostly Clear
Mostly clear. Low around 70, with temperatures rising to around 72 overnight. South wind around 5 mph.
7-day forecast for Thornton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Mostly Clear | 5 mph S | 0% |
| Saturday | 97°F | Sunny | 5 to 10 mph S | 0% |
| Saturday Night | 71°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Sunday | 98°F | Mostly Sunny | 0 to 5 mph S | 1% |
| Sunday Night | 73°F | Mostly Cloudy | 5 mph S | 4% |
| Monday | 97°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 22% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph ESE | 22% |
| Tuesday | 95°F | Mostly Sunny | 0 to 5 mph NE | 12% |
| Tuesday Night | 72°F | Partly Cloudy | 0 to 5 mph NE | 12% |
| Wednesday | 94°F | Mostly Sunny | 5 mph NE | 10% |
| Wednesday Night | 71°F | Partly Cloudy | 0 to 5 mph ENE | 5% |
| Thursday | 94°F | Mostly Sunny | 5 mph ENE | 2% |
| Thursday Night | 69°F | Partly Cloudy | 0 to 5 mph E | 2% |
| Friday | 93°F | Mostly Sunny | 0 to 5 mph ENE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Thornton (31.410, -96.574). Updated through the day.
Growing snapshot for Thornton
Last spring frost
Mar 13
First fall frost
Nov 22
Growing season
251 days
Hardiness zone
8b
More local growing data for Thornton: nearby ZIP 76687 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mexia, Tx (17.3 mi from Thornton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.