Glen Ellen, California Weather
Coastal fog thickens at dawn. Day 78 of spring. Read this microseason across nine climate regions →
Glen Ellen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Mostly Clear——87°57°—
- FridayJun 5Overcast——90°65°+3°
- SaturdayJun 6Overcast——80°49°-10°
- SundayJun 7Overcast——76°43°-4°
- MondayJun 8Heavy Drizzle18%0.37″56°45°-20°
- TuesdayJun 9Light Drizzle24%0.01″76°52°+20°
- WednesdayJun 10Clear——85°52°+9°
AQI 44 (Good), driven by Ozone. AQI up 15 in the last 6 hours — air quality is degrading. Ozone at AQI 39 now. With UV 0.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9 by mid-afternoon.
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 39 now. With UV 0.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 9 by mid-afternoon.
- Present
- AQI 39
- UV peak
- 0.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 9
PM × Wind × Precip
PM2.5/PM10 ratio 0.70 with 9 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.70
- 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
- 7:09 AM
- Moonset
- 5:26 PM
- In sign
- ♒︎ Aquarius
Coastal fog thickens at dawn
Glen Ellen at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 6 (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.