Duncan, Arizona Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
Duncan weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——102°76°—
- MondayJul 6Overcast29%—102°72°0°
- TuesdayJul 7Drizzle33%—101°72°-1°
- WednesdayJul 8Overcast16%—101°76°0°
- ThursdayJul 9Light Drizzle——102°78°+1°
- FridayJul 10Overcast13%—102°75°0°
- SaturdayJul 11Drizzle24%0.08″102°77°0°
AQI 34 (Good), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM2.5 at 25.8 µg/m³, PM10 at 28.0 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 33. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 33
- UV peak
- 4.6 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 25.8 µg/m³, PM10 at 28.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:31 PM
- Moonset
- 10:34 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
Duncan at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: March 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 85534
16-Day Forecast — Duncan
- Sun102°76°4%
- Mon102°72°29%
- Tue101°72°33%
- Wed101°76°16%
- Thu102°78°8%
- Fri102°75°13%
- Sat102°77°24%
- Sun101°76°20%
- Mon99°80°30%
- Tue97°78°30%
- Wed99°77°20%
- Thu101°81°16%
- Fri105°82°23%
- Sat107°84°35%
- Sun108°84°35%
- Mon106°84°45%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 includes Duncan in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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