Duncan, Arizona Weather
The dry breath stills. Day 88 of spring. Read this microseason across nine climate regions →
Duncan weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Light Drizzle46%—96°70°—
- TuesdayJun 16Overcast——102°72°+6°
- WednesdayJun 17Overcast——97°76°-5°
- ThursdayJun 18Light Drizzle——97°76°0°
- FridayJun 19Overcast——99°74°+2°
- SaturdayJun 20Mostly Clear——99°77°0°
- SundayJun 21Clear——98°75°-1°
AQI 38 (Good), driven by PM2.5. AQI down 7 over the last 6 hours (gradual decline). PM2.5 at 6.6 µg/m³ (AQI 37) with a 0.61 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 31 now. With UV 1.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 5 around 1 PM.
- Present
- AQI 31
- UV peak
- 1.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 5
PM × Wind × Precip
PM2.5 at 6.6 µg/m³ (AQI 37) with a 0.61 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.61
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:21 AM
- Moonset
- 7:39 PM
- In sign
- ♋︎ Cancer
The dry breath stills
Duncan at a glance
- Today vs. normal: 11°F below the seasonal normal for this latitude
- Last frost: March 3 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Duncan
- Mon96°70°46%
- Tue102°72°4%
- Wed97°76°2%
- Thu97°76°5%
- Fri99°74°1%
- Sat99°77°2%
- Sun98°75°1%
- Mon98°75°0%
- Tue102°72°5%
- Wed97°72°9%
- Thu99°78°8%
- Fri95°79°13%
- Sat96°77°23%
- Sun98°76°32%
- Mon98°72°39%
- Tue97°78°38%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Duncan
SPC has placed Duncan in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Duncan
- 85534