Derby Acres, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Derby Acres weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——93°71°—
- MondayJul 6Clear——94°70°+1°
- TuesdayJul 7Clear——97°67°+3°
- WednesdayJul 8Clear——96°68°-1°
- ThursdayJul 9Clear——101°70°+5°
- FridayJul 10Clear——105°74°+4°
- SaturdayJul 11Overcast——104°75°-1°
AQI 43 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.8 µg/m³ (AQI 52), ratio 0.51 with 5 mph wind — characteristic of long-range haze transport rather than a local source.
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 40 now. With UV 9.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 49 around 1 PM.
- Present
- AQI 40
- UV peak
- 9.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 49
PM × Wind × Precip
PM2.5 at 9.8 µg/m³ (AQI 52), ratio 0.51 with 5 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.51
- 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
- 11:15 PM
- Moonset
- 11:17 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Derby Acres at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: March 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Derby Acres
- Sun93°71°2%
- Mon94°70°0%
- Tue97°67°0%
- Wed96°68°0%
- Thu101°70°0%
- Fri105°74°0%
- Sat104°75°0%
- Sun88°74°1%
- Mon96°68°7%
- Tue99°77°8%
- Wed104°80°1%
- Thu106°80°3%
- Fri107°80°7%
- Sat103°81°13%
- Sun105°77°6%
- Mon103°77°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 Derby Acres
- 93224