Westwood, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Westwood weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——81°55°—
- MondayJul 6Clear——80°54°-1°
- TuesdayJul 7Mostly Clear——86°48°+6°
- WednesdayJul 8Clear——88°50°+2°
- ThursdayJul 9Clear——89°53°+1°
- FridayJul 10Partly Cloudy——90°52°+1°
- SaturdayJul 11Overcast——94°54°+4°
AQI 42 (Good), driven by Ozone. Ozone at AQI 60. Overcast through the UV peak window (cloud cover ~87%) — 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 60. Overcast through the UV peak window (cloud cover ~87%) — afternoon ozone should stay flat.
- Present
- AQI 60
- UV peak
- 7.8 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 31
PM × Wind × Precip
PM2.5 at 5.7 µg/m³ (AQI 32), ratio 0.52 with 5 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.52
- 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
- 11:24 PM
- Moonset
- 11:22 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Westwood at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 96137
16-Day Forecast — Westwood
- Sun82°55°1%
- Mon80°54°2%
- Tue86°48°0%
- Wed88°50°0%
- Thu89°53°0%
- Fri90°52°0%
- Sat94°54°0%
- Sun93°55°1%
- Mon94°59°3%
- Tue95°64°3%
- Wed91°62°2%
- Thu80°56°3%
- Fri90°54°6%
- Sat94°58°6%
- Sun95°59°10%
- Mon92°56°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.
SPC Convective Outlook
Storm Prediction Center — Westwood
SPC includes Westwood in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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 Westwood
- 96137