Kirkwood, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Kirkwood weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Light Drizzle18%0.01″61°49°—
- MondayJul 6Overcast——66°47°+5°
- TuesdayJul 7Overcast——73°46°+7°
- WednesdayJul 8Clear——74°46°+1°
- ThursdayJul 9Clear——75°48°+1°
- FridayJul 10Overcast——79°49°+4°
- SaturdayJul 11Overcast——78°53°-1°
AQI 49 (Good), driven by Ozone. Ozone at AQI 70. Overcast through the UV peak window (cloud cover ~100%) — 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 70. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 70
- UV peak
- 10.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 48
PM × Wind × Precip
PM2.5 at 7.0 µg/m³, PM10 at 14.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.49
- Wind
- calm
- 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
- 11:19 PM
- Moonset
- 11:18 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Kirkwood at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: April 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 95646
16-Day Forecast — Kirkwood
- Sun61°49°18%
- Mon66°47°1%
- Tue73°46°0%
- Wed74°46°0%
- Thu75°48°0%
- Fri79°49°0%
- Sat78°53°1%
- Sun74°46°2%
- Mon74°48°13%
- Tue76°52°20%
- Wed77°54°14%
- Thu79°54°7%
- Fri81°54°17%
- Sat79°56°19%
- Sun75°50°26%
- Mon76°50°25%
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.
SPC Convective Outlook
Storm Prediction Center — Kirkwood
SPC includes Kirkwood in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Kirkwood
- 95646