Mertens, TX Weather & Growing Conditions
Today
99°F
Sunny
Sunny, with a high near 99. Heat index values as high as 101. South wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny | 5 to 10 mph S | 0% |
| Tonight | 77°F | Clear | 5 to 10 mph SSE | 0% |
| Wednesday | 100°F | Sunny | 5 to 10 mph SSW | 0% |
| Wednesday Night | 76°F | Mostly Clear | 5 to 10 mph S | 0% |
| Thursday | 99°F | Sunny | 5 to 10 mph S | 2% |
| Thursday Night | 77°F | Mostly Clear | 5 to 10 mph SSE | 2% |
| Friday | 99°F | Sunny | 5 mph S | 5% |
| Friday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 5% |
| Saturday | 97°F | Sunny | 5 mph S | 5% |
| Saturday Night | 76°F | Mostly Clear | 5 mph SSE | 5% |
| Sunday | 97°F | Sunny | 5 to 10 mph S | 5% |
| Sunday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 6% |
| Monday | 97°F | Sunny | 5 to 10 mph S | 8% |
| Monday Night | 76°F | Mostly Clear | 10 mph S | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mertens, TX
Last spring frost
Mar 21
First fall frost
Nov 10
Growing season
235 days
Hardiness zone
8b
Explore more for Mertens, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Hillsboro, Tx (12.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.