Discovery Bay, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Discovery Bay weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Mostly Clear——90°61°—
- MondayJul 6Overcast——88°55°-2°
- TuesdayJul 7Mostly Clear——93°53°+5°
- WednesdayJul 8Clear——99°52°+6°
- ThursdayJul 9Clear——102°57°+3°
- FridayJul 10Overcast——106°58°+4°
- SaturdayJul 11Overcast——106°64°0°
AQI 33 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.3 µg/m³ (AQI 41) with a 0.74 fine-to-coarse ratio and 3 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 7.3 µg/m³ (AQI 41) with a 0.74 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.74
- Wind
- calm
- 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
- 11:25 PM
- Moonset
- 11:25 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Discovery Bay at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: April 3 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 94505
16-Day Forecast — Discovery Bay
- Sun90°61°0%
- Mon88°55°0%
- Tue93°53°0%
- Wed99°52°0%
- Thu102°57°0%
- Fri106°58°0%
- Sat106°64°0%
- Sun89°69°1%
- Mon102°68°2%
- Tue109°66°4%
- Wed109°65°1%
- Thu111°65°3%
- Fri113°72°3%
- Sat109°68°3%
- Sun105°64°3%
- Mon104°60°6%
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 Discovery Bay
- 94505