Shasta Lake, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Shasta Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——97°72°—
- MondayJul 6Overcast——96°69°-1°
- TuesdayJul 7Clear——98°61°+2°
- WednesdayJul 8Clear——102°62°+4°
- ThursdayJul 9Clear——104°63°+2°
- FridayJul 10Overcast——106°66°+2°
- SaturdayJul 11Overcast——107°68°+1°
AQI 39 (Good), driven by Ozone. AQI down 7 over the last 6 hours (gradual decline). Ozone at AQI 56. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
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 56. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 56
- UV peak
- 7.9 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 29
PM × Wind × Precip
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.68 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.68
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:30 PM
- Moonset
- 11:27 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Shasta Lake at a glance
- Today vs. normal: 18°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 96019
16-Day Forecast — Shasta Lake
- Sun97°72°1%
- Mon96°69°3%
- Tue98°61°0%
- Wed102°62°0%
- Thu104°63°0%
- Fri106°66°0%
- Sat107°68°0%
- Sun95°65°0%
- Mon101°64°1%
- Tue108°67°2%
- Wed107°66°2%
- Thu107°67°1%
- Fri109°69°0%
- Sat109°70°3%
- Sun104°71°3%
- Mon103°64°3%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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.
ZIP codes in Shasta Lake
- 96019
- 96089