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
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 69 in the afternoon. North northwest wind 0 to 5 mph.
7-day forecast for Glenn Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 0 to 5 mph NNW | 0% |
| Tonight | 51°F | Patchy Fog | 0 to 5 mph SE | 0% |
| Thursday | 76°F | Sunny | 5 to 10 mph S | 0% |
| Thursday Night | 53°F | Partly Cloudy | 5 to 10 mph NW | 3% |
| Friday | 69°F | Sunny | 5 to 10 mph N | 0% |
| Friday Night | 47°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 66°F | Partly Sunny | 5 mph NNE | 4% |
| Saturday Night | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph N | 15% |
| Sunday | 66°F | Mostly Sunny | 0 to 5 mph N | 9% |
| Sunday Night | 44°F | Mostly Clear | 0 mph | 1% |
| Monday | 69°F | Sunny | 0 to 5 mph SSW | 2% |
| Monday Night | 45°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 72°F | Sunny | 0 to 5 mph S | 2% |
| Tuesday Night | 49°F | Partly Cloudy | 0 to 5 mph SSE | 4% |
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
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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 Nov 4, 2026.