Hartland, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Hartland weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast12%—77°60°—
- MondayJul 6Overcast——79°63°+2°
- TuesdayJul 7Overcast——87°62°+8°
- WednesdayJul 8Clear——89°62°+2°
- ThursdayJul 9Clear——92°65°+3°
- FridayJul 10Clear——95°67°+3°
- SaturdayJul 11Overcast——96°70°+1°
AQI 56 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 58 now. With UV 11 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 83 around 1 PM.
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 58 now. With UV 11 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 83 around 1 PM.
- Present
- AQI 58
- UV peak
- 10.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 83
PM × Wind × Precip
PM2.5 at 12.1 µg/m³ (AQI 57), ratio 0.53 with 7 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.53
- 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
- 11:13 PM
- Moonset
- 11:14 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Hartland at a glance
- Today vs. normal: 73°F — typical for the season
- Last frost: March 27 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Hartland
- Sun77°60°12%
- Mon79°63°1%
- Tue87°62°0%
- Wed89°62°0%
- Thu92°65°0%
- Fri95°67°0%
- Sat96°70°1%
- Sun82°64°2%
- Mon90°62°9%
- Tue91°70°15%
- Wed94°72°7%
- Thu94°71°13%
- Fri99°72°26%
- Sat92°68°16%
- Sun94°67°19%
- Mon94°68°10%
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 Hartland
- 93603