Shasta, California Weather
Coastal fog thickens at dawn. Day 77 of spring. Read this microseason across nine climate regions →
Shasta weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Clear——90°65°—
- FridayJun 5Overcast——89°68°-1°
- SaturdayJun 6Overcast——88°60°-1°
- SundayJun 7Overcast——81°52°-7°
- MondayJun 8Showers33%0.67″59°50°-22°
- TuesdayJun 9Drizzle35%0.02″74°49°+15°
- WednesdayJun 10Clear10%—90°52°+16°
Ozone at AQI 44 now. AQI flat over the last 6 hours (within ±3 points). With UV 9.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 57 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 44 now. With UV 9.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 57 by mid-afternoon.
- Present
- AQI 44
- UV peak
- 9.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 57
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
- 6:44 AM
- Moonset
- 4:15 PM
- In sign
- ♒︎ Aquarius
Coastal fog thickens at dawn
Shasta at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 20 (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.