Glenn Heights, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glenn Heights, a city in Dallas County, Texas.
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 for Glenn Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny | 5 to 10 mph S | 0% |
| Tonight | 76°F | Mostly Clear | 5 to 10 mph S | 0% |
| Wednesday | 101°F | Sunny | 5 to 10 mph SSW | 0% |
| Wednesday Night | 76°F | Mostly Clear | 5 to 10 mph S | 0% |
| Thursday | 100°F | Sunny | 5 to 10 mph S | 1% |
| Thursday Night | 77°F | Mostly Clear | 10 mph S | 1% |
| Friday | 99°F | Sunny | 5 to 10 mph S | 9% |
| Friday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 9% |
| Saturday | 97°F | Sunny | 5 mph S | 7% |
| Saturday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 7% |
| Sunday | 97°F | Sunny | 5 to 10 mph S | 5% |
| Sunday Night | 76°F | Mostly Clear | 10 mph SSE | 5% |
| Monday | 97°F | Sunny | 10 mph S | 6% |
| Monday Night | 76°F | Mostly Clear | 10 mph S | 6% |
Forecast source: National Weather Service (api.weather.gov) for Glenn Heights (32.551, -96.854). Updated through the day.
Growing snapshot for Glenn Heights
Last spring frost
Mar 6
First fall frost
Nov 25
Growing season
265 days
Hardiness zone
8b
More local growing data for Glenn Heights: nearby ZIP 75115 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Addison
Balch Springs
Bear Creek Ranch
Cedar Hill
Cockrell Hill
Combine
Coppell
Dallas
DeSoto
Duncanville
Farmers Branch
Garland
Grand Prairie
Highland Park
Hutchins
Irving
Lancaster
Mesquite
Ovilla
Richardson
Rowlett
Sachse
Seagoville
Sunnyvale
University Park
Wilmer
Climate data from the nearest NOAA station, Dallas Redbird Ap, Tx (5.6 mi from Glenn Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.