Gilroy, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Gilroy weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——80°54°—
- MondayJul 6Overcast——78°52°-2°
- TuesdayJul 7Overcast——76°49°-2°
- WednesdayJul 8Clear——79°48°+3°
- ThursdayJul 9Clear——82°50°+3°
- FridayJul 10Overcast——82°51°0°
- SaturdayJul 11Overcast——83°53°+1°
AQI 36 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.3 µg/m³ (AQI 53) with a 0.66 fine-to-coarse ratio and 2 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
Ozone × UV × Sky
Ozone at AQI 35 now. With UV 9.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 44 around 1 PM.
- Present
- AQI 35
- UV peak
- 9.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 44
PM × Wind × Precip
PM2.5 at 10.3 µg/m³ (AQI 53) with a 0.66 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.66
- 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
Gilroy at a glance
- Today vs. normal: 76°F — typical for the season
- Last frost: March 29 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 95020
16-Day Forecast — Gilroy
- Sun80°54°0%
- Mon78°52°1%
- Tue76°49°0%
- Wed79°48°0%
- Thu82°50°0%
- Fri82°51°0%
- Sat83°53°0%
- Sun78°58°1%
- Mon96°62°5%
- Tue91°60°3%
- Wed89°57°1%
- Thu91°59°2%
- Fri92°58°3%
- Sat85°57°3%
- Sun84°55°3%
- Mon85°54°3%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Gilroy
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 Gilroy
- 95020