Cromberg, California Weather
Bay laurel fragrance sweetens shade. Day 91 of spring. Read this microseason across nine climate regions →
Cromberg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 18Overcast——89°64°—
- FridayJun 19Light Drizzle10%0.02″76°53°-13°
- SaturdayJun 20Clear——79°47°+3°
- SundayJun 21Overcast——85°49°+6°
- MondayJun 22Clear——92°54°+7°
- TuesdayJun 23Clear——89°56°-3°
- WednesdayJun 24Clear——90°53°+1°
AQI 37 (Good), driven by PM2.5. AQI down 25 over the last 6 hours — air quality is improving sharply. PM2.5 at 13.3 µg/m³ (AQI 59) with a 0.85 fine-to-coarse ratio and 4 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 13.3 µg/m³ (AQI 59) with a 0.85 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.85
- 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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 9:27 AM
- Moonset
- 11:22 PM
- In sign
- ♌︎ Leo
Bay laurel fragrance sweetens shade
Cromberg at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: April 15 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Cromberg
- Thu89°64°5%
- Fri76°53°10%
- Sat79°47°0%
- Sun85°49°1%
- Mon92°54°0%
- Tue89°56°0%
- Wed90°53°0%
- Thu90°53°0%
- Fri90°55°0%
- Sat88°54°0%
- Sun91°55°1%
- Mon98°58°0%
- Tue95°61°3%
- Wed93°59°3%
- Thu90°56°3%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 18, 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 has placed Cromberg in the General Thunderstorms category for severe thunderstorms today.
- 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