Homestead Valley, California Weather
Coastal fog thickens at dawn. Day 76 of spring. Read this microseason across nine climate regions →
Homestead Valley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——94°72°—
- ThursdayJun 4Clear——96°74°+2°
- FridayJun 5Clear——98°70°+2°
- SaturdayJun 6Overcast——92°68°-6°
- SundayJun 7Overcast——88°63°-4°
- MondayJun 8Partly Cloudy——90°59°+2°
- TuesdayJun 9Partly Cloudy——92°63°+2°
Ozone at AQI 78 now. AQI up 7 over the last 6 hours (gradual rise). With UV 11 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 77 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 78 now. With UV 11 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 77 by mid-afternoon.
- Present
- AQI 78
- UV peak
- 10.5 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 77
PM × Wind × Precip
PM2.5 at 4.7 µg/m³, PM10 at 14.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.33
- Wind
- calm
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:20 AM
- Moonset
- 3:08 PM
- In sign
- ♑︎ Capricorn
Coastal fog thickens at dawn
Homestead Valley at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: March 13 (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 3, 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.