Yosemite Valley, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Yosemite Valley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast22%—79°65°—
- MondayJul 6Overcast——84°65°+5°
- TuesdayJul 7Mostly Clear——89°64°+5°
- WednesdayJul 8Clear——91°65°+2°
- ThursdayJul 9Clear——93°67°+2°
- FridayJul 10Overcast——97°68°+4°
- SaturdayJul 11Overcast——96°71°-1°
AQI 36 (Good), driven by Ozone. Ozone at AQI 75. Overcast through the UV peak window (cloud cover ~94%) — 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 75. Overcast through the UV peak window (cloud cover ~94%) — afternoon ozone should stay flat.
- Present
- AQI 75
- UV peak
- 10.5 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 52
PM × Wind × Precip
PM2.5 at 7.8 µg/m³ (AQI 43), ratio 0.56 with 9 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.56
- 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
- 11:17 PM
- Moonset
- 11:16 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Yosemite Valley at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: April 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Yosemite Valley
- Sun79°65°22%
- Mon84°65°1%
- Tue89°64°0%
- Wed91°65°0%
- Thu93°67°0%
- Fri97°68°0%
- Sat96°71°1%
- Sun87°65°2%
- Mon89°65°11%
- Tue93°71°16%
- Wed94°72°10%
- Thu97°72°10%
- Fri98°73°29%
- Sat97°74°21%
- Sun92°64°17%
- Mon93°70°13%
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 Yosemite Valley
- 95389