Duncanville, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Duncanville, a city in Dallas County, Texas.
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. Northwest wind around 5 mph.
7-day forecast for Duncanville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 5 mph NW | 0% |
| Wednesday | 72°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 51°F | Mostly Clear then Patchy Fog | 0 to 5 mph SSE | 0% |
| Thursday | 77°F | Sunny | 5 to 10 mph SSW | 12% |
| Thursday Night | 52°F | Mostly Clear | 5 to 10 mph NW | 13% |
| Friday | 69°F | Sunny | 5 to 10 mph N | 0% |
| Friday Night | 48°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 67°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 46°F | Partly Cloudy | 0 to 5 mph N | 7% |
| Sunday | 68°F | Sunny | 0 to 5 mph NNW | 2% |
| Sunday Night | 46°F | Clear | 0 to 5 mph WNW | 1% |
| Monday | 71°F | Sunny | 0 to 5 mph SSW | 1% |
| Monday Night | 47°F | Mostly Clear | 5 mph S | 1% |
| Tuesday | 74°F | Sunny | 5 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov) for Duncanville (32.646, -96.914). Updated through the day.
Growing snapshot for Duncanville
Last spring frost
Mar 20
First fall frost
Nov 13
Growing season
236 days
Hardiness zone
8b
More local growing data for Duncanville: nearby ZIP 75137 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Joe Pool Lake, Tx (3.6 mi from Duncanville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.