Duncan, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Duncan, a town in Greenlee County, Arizona.
Today
102°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny. High near 102, with temperatures falling to around 94 in the afternoon. Heat index values as high as 102. Northwest wind 3 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
7-day forecast for Duncan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 102°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 13 mph NW | 36% |
| Tonight | 70°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 10 mph WNW | 32% |
| Wednesday | 101°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 10 mph NW | 23% |
| Wednesday Night | 70°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 9 mph NW | 23% |
| Thursday | 103°F | Chance Showers And Thunderstorms | 2 to 10 mph WNW | 27% |
| Thursday Night | 70°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 9 mph N | 18% |
| Friday | 103°F | Chance Showers And Thunderstorms | 2 to 9 mph WNW | 27% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 2 to 8 mph NNE | 27% |
| Saturday | 102°F | Slight Chance Showers And Thunderstorms | 1 to 8 mph ESE | 11% |
| Saturday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 8 mph NNE | 11% |
| Sunday | 102°F | Slight Chance Showers And Thunderstorms | 1 to 8 mph SSW | 19% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 8 mph NW | 19% |
| Monday | 101°F | Chance Showers And Thunderstorms | 3 to 14 mph WNW | 30% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 14 mph NW | 30% |
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 Aug 4, 2026.