Thornton, TX Weather & Growing Conditions
Today
97°F
Sunny
Sunny, with a high near 97. Heat index values as high as 98. South wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny | 5 to 10 mph S | 0% |
| Tonight | 76°F | Mostly Clear | 5 mph S | 0% |
| Wednesday | 99°F | Sunny | 5 to 10 mph SSW | 0% |
| Wednesday Night | 74°F | Mostly Clear | 5 mph S | 2% |
| Thursday | 99°F | Sunny | 5 mph S | 2% |
| Thursday Night | 75°F | Mostly Clear | 5 mph S | 3% |
| Friday | 97°F | Sunny | 5 mph SSE | 8% |
| Friday Night | 74°F | Mostly Clear | 5 mph SSE | 8% |
| Saturday | 96°F | Sunny | 0 to 5 mph SSE | 7% |
| Saturday Night | 74°F | Mostly Clear | 5 mph SSE | 7% |
| Sunday | 96°F | Sunny | 0 to 5 mph S | 7% |
| Sunday Night | 74°F | Mostly Clear | 5 mph SSE | 7% |
| Monday | 96°F | Sunny | 5 to 10 mph S | 7% |
| Monday Night | 74°F | Mostly Clear | 5 to 10 mph S | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Thornton, TX
Last spring frost
Mar 13
First fall frost
Nov 22
Growing season
251 days
Hardiness zone
8b
Explore more for Thornton, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Mexia, Tx (17.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.