Yucaipa, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Yucaipa weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Mostly Clear——89°62°—
- MondayJul 6Clear——89°61°0°
- TuesdayJul 7Clear——93°62°+4°
- WednesdayJul 8Clear——97°64°+4°
- ThursdayJul 9Clear——97°66°0°
- FridayJul 10Clear——97°63°0°
- SaturdayJul 11Overcast——94°62°-3°
AQI 36 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.1 µg/m³, PM10 at 13.2 µg/m³ — typical background levels with no transport signature.
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 30 now. With UV 8.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 34 around 1 PM.
- Present
- AQI 30
- UV peak
- 8.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 34
PM × Wind × Precip
PM2.5 at 10.1 µg/m³, PM10 at 13.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.77
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:04 PM
- Moonset
- 11:07 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Yucaipa at a glance
- Today vs. normal: 79°F — typical for the season
- Last frost: March 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 92399
16-Day Forecast — Yucaipa
- Sun89°62°1%
- Mon89°61°1%
- Tue93°62°0%
- Wed97°64°0%
- Thu97°66°0%
- Fri97°63°0%
- Sat94°62°1%
- Sun94°64°4%
- Mon98°64°16%
- Tue94°72°22%
- Wed97°73°12%
- Thu97°72°21%
- Fri105°77°18%
- Sat112°82°10%
- Sun98°77°10%
- Mon96°71°10%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Yucaipa
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 Yucaipa
- 92399