Hidden Valley Lake, California Weather
Coastal fog thickens at dawn. Day 77 of spring. Read this microseason across nine climate regions →
Hidden Valley Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——91°59°—
- FridayJun 5Overcast——93°66°+2°
- SaturdayJun 6Overcast——83°52°-10°
- SundayJun 7Overcast——80°50°-3°
- MondayJun 8Heavy Drizzle21%0.42″56°51°-24°
- TuesdayJun 9Light Drizzle19%0.01″65°50°+9°
- WednesdayJun 10Clear——86°52°+21°
Ozone at AQI 500 — peak already passed at 1 PM under clear skies. AQI up 20 in the last 6 hours — air quality is degrading. Levels should ease through evening.
AVOID OUTDOORS Avoid outdoor exertion. Keep windows closed; use HEPA filtration indoors if available.
What's driving it
Ozone × UV × Sky
Ozone at AQI 500 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 500
- UV peak
- 4.8 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 500
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
- 6:39 AM
- Moonset
- 4:21 PM
- In sign
- ♒︎ Aquarius
Coastal fog thickens at dawn
Hidden Valley Lake at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 9 (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 4, 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.