American Canyon, California Weather
Coastal fog thickens at dawn. Day 78 of spring. Read this microseason across nine climate regions →
American Canyon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——78°55°—
- FridayJun 5Overcast——87°54°+9°
- SaturdayJun 6Overcast——77°54°-10°
- SundayJun 7Overcast——75°54°-2°
- MondayJun 8Heavy Drizzle18%0.20″59°54°-16°
- TuesdayJun 9Light Drizzle17%0.02″77°56°+18°
- WednesdayJun 10Clear——85°58°+8°
AQI 36 (Good), driven by PM2.5. AQI up 9 over the last 6 hours (gradual rise). PM2.5/PM10 ratio 0.68 with 9 mph wind — characteristic of long-range haze transport rather than a local source.
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 33 now. With UV 0.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 8 by mid-afternoon.
- Present
- AQI 33
- UV peak
- 0.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5/PM10 ratio 0.68 with 9 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.68
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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).
The higher the clouds, the finer the weather.
- Moonrise
- 7:07 AM
- Moonset
- 5:26 PM
- In sign
- ♒︎ Aquarius
Coastal fog thickens at dawn
American Canyon at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: April 5 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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.