Duncan, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Duncan, a town in Greenlee County, Arizona.
This Afternoon
68°F
Sunny
Sunny. High near 68, with temperatures falling to around 64 in the afternoon. Southeast wind 3 to 7 mph.
7-day forecast for Duncan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Sunny | 3 to 7 mph SE | 0% |
| Tonight | 39°F | Mostly Clear | 5 mph ESE | 0% |
| Wednesday | 70°F | Sunny | 2 to 7 mph S | 0% |
| Wednesday Night | 39°F | Mostly Clear | 1 to 6 mph NNW | 0% |
| Thursday | 70°F | Sunny | 1 to 6 mph ESE | 0% |
| Thursday Night | 42°F | Mostly Clear | 3 mph E | 0% |
| Friday | 71°F | Mostly Sunny | 6 mph ESE | 5% |
| Friday Night | 42°F | Partly Cloudy | 3 mph E | 6% |
| Saturday | 72°F | Sunny | 2 to 7 mph ESE | 4% |
| Saturday Night | 41°F | Mostly Clear | 7 mph ESE | 2% |
| Sunday | 72°F | Sunny | 5 to 14 mph ESE | 3% |
| Sunday Night | 41°F | Partly Cloudy | 3 to 9 mph E | 5% |
| Monday | 72°F | Mostly Sunny | 6 mph SE | 5% |
| Monday Night | 43°F | Partly Cloudy | 3 mph ENE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Duncan (32.750, -109.088). Updated through the day.
Growing snapshot for Duncan
Last spring frost
Apr 24
First fall frost
Oct 25
Growing season
183 days
Hardiness zone
8a
More local growing data for Duncan: nearby ZIP 85534 weather · frost dates · planting calendar · Arizona frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Duncan, Az (2.6 mi from Duncan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.