Sierra City, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Sierra City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Light Drizzle10%0.02″77°59°—
- MondayJul 6Overcast——78°59°+1°
- TuesdayJul 7Overcast——83°55°+5°
- WednesdayJul 8Clear——84°55°+1°
- ThursdayJul 9Clear——86°57°+2°
- FridayJul 10Overcast——88°59°+2°
- SaturdayJul 11Overcast——89°62°+1°
AQI 28 (Good), driven by Ozone. AQI down 7 over the last 6 hours (gradual decline). Ozone at AQI 47. Overcast through the UV peak window (cloud cover ~90%) — 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 47. Overcast through the UV peak window (cloud cover ~90%) — afternoon ozone should stay flat.
- Present
- AQI 47
- UV peak
- 8.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 7.5 µg/m³ (AQI 42), ratio 0.55 with 6 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.55
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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
- 11:22 PM
- Moonset
- 11:20 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Sierra City at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: April 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 96125
16-Day Forecast — Sierra City
- Sun77°59°10%
- Mon78°59°1%
- Tue83°55°0%
- Wed84°55°0%
- Thu86°57°0%
- Fri88°59°0%
- Sat89°62°0%
- Sun86°59°1%
- Mon84°56°4%
- Tue90°60°7%
- Wed89°63°5%
- Thu89°64°5%
- Fri91°65°13%
- Sat90°65°12%
- Sun86°62°13%
- Mon86°60°14%
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.
SPC Convective Outlook
Storm Prediction Center — Sierra City
SPC includes Sierra City in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Sierra City
- 96125