Humboldt Hill, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Humboldt Hill weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Foggy——62°52°—
- MondayJul 6Foggy——57°52°-5°
- TuesdayJul 7Foggy——67°50°+10°
- WednesdayJul 8Overcast——68°49°+1°
- ThursdayJul 9Foggy——65°53°-3°
- FridayJul 10Foggy——67°48°+2°
- SaturdayJul 11Foggy——69°51°+2°
AQI 34 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.1 µg/m³ (AQI 53) with a 0.80 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 10.1 µg/m³ (AQI 53) with a 0.80 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.80
- Wind
- light
- 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
- 11:38 PM
- Moonset
- 11:35 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Humboldt Hill at a glance
- Today vs. normal: 15°F below 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.
16-Day Forecast — Humboldt Hill
- Sun62°52°0%
- Mon57°52°1%
- Tue67°50°2%
- Wed68°49°3%
- Thu65°53°3%
- Fri67°48°3%
- Sat69°51°5%
- Sun72°51°2%
- Mon72°51°2%
- Tue71°50°1%
- Wed71°52°1%
- Thu70°51°3%
- Fri69°49°3%
- Sat71°49°3%
- Sun68°52°3%
- Mon68°50°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 Humboldt Hill
- 95503