Harker Heights, TX Weather & Growing Conditions
Today
99°F
Sunny
Sunny, with a high near 99. Heat index values as high as 100. South southeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny | 10 mph SSE | 0% |
| Tonight | 76°F | Clear | 5 to 10 mph S | 0% |
| Wednesday | 99°F | Sunny | 5 to 10 mph S | 0% |
| Wednesday Night | 75°F | Mostly Clear | 5 to 10 mph S | 1% |
| Thursday | 99°F | Sunny | 5 to 10 mph S | 0% |
| Thursday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Friday | 98°F | Sunny | 5 mph S | 2% |
| Friday Night | 75°F | Mostly Clear | 5 to 10 mph SSE | 6% |
| Saturday | 96°F | Sunny | 5 mph SSE | 4% |
| Saturday Night | 76°F | Mostly Clear | 5 mph SSE | 4% |
| Sunday | 96°F | Sunny | 5 to 10 mph SSE | 3% |
| Sunday Night | 75°F | Mostly Clear | 5 to 10 mph SSE | 5% |
| Monday | 96°F | Sunny | 5 to 10 mph S | 5% |
| Monday Night | 76°F | Mostly Clear | 10 mph S | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harker Heights, TX
Last spring frost
Mar 14
First fall frost
Nov 17
Growing season
247 days
Hardiness zone
8b
Explore more for Harker Heights, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Killeen, Tx (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.