Cromberg, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Cromberg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——81°61°—
- MondayJul 6Overcast——80°59°-1°
- TuesdayJul 7Overcast——84°52°+4°
- WednesdayJul 8Clear——88°48°+4°
- ThursdayJul 9Clear——89°52°+1°
- FridayJul 10Overcast——90°54°+1°
- SaturdayJul 11Overcast——93°55°+3°
AQI 28 (Good), driven by Ozone. AQI down 5 over the last 6 hours (gradual decline). Ozone at AQI 47 now. With UV 8.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 36 around 1 PM.
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 47 now. With UV 8.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 36 around 1 PM.
- Present
- AQI 47
- UV peak
- 8.1 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 36
PM × Wind × Precip
PM2.5 at 7.0 µg/m³ (AQI 39), ratio 0.50 with 6 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.50
- 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
- 11:23 PM
- Moonset
- 11:20 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Cromberg at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: April 15 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Cromberg
- Sun81°61°2%
- Mon80°59°2%
- Tue84°52°0%
- Wed88°48°0%
- Thu89°52°0%
- Fri90°54°0%
- Sat93°55°0%
- Sun93°57°1%
- Mon96°65°4%
- Tue96°66°6%
- Wed92°61°5%
- Thu84°56°4%
- Fri91°56°10%
- Sat95°61°9%
- Sun96°63°13%
- Mon91°62°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.
SPC Convective Outlook
Storm Prediction Center — Cromberg
SPC includes Cromberg 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 Cromberg
- 96103