Vista Santa Rosa, California Weather
Coastal fog thickens at dawn. Day 76 of spring. Read this microseason across nine climate regions →
Vista Santa Rosa weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Partly Cloudy——106°73°—
- ThursdayJun 4Clear——108°74°+2°
- FridayJun 5Clear——110°77°+2°
- SaturdayJun 6Overcast——103°78°-7°
- SundayJun 7Overcast——101°77°-2°
- MondayJun 8Overcast——101°76°0°
- TuesdayJun 9Overcast——103°74°+2°
Ozone at AQI 96 now. AQI flat over the last 6 hours (within ±3 points). With UV 11 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 96 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 96 now. With UV 11 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 96 by mid-afternoon.
- Present
- AQI 96
- UV peak
- 10.6 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 96
PM × Wind × Precip
PM2.5 at 7.2 µg/m³, PM10 at 34.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.21
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:17 AM
- Moonset
- 3:09 PM
- In sign
- ♑︎ Capricorn
Coastal fog thickens at dawn
Vista Santa Rosa at a glance
- Today vs. normal: 20°F above the seasonal normal for this latitude
- Last frost: March 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 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.