Rosemont, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Rosemont weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——88°60°—
- MondayJul 6Overcast——87°56°-1°
- TuesdayJul 7Overcast——92°57°+5°
- WednesdayJul 8Clear——98°59°+6°
- ThursdayJul 9Clear——101°64°+3°
- FridayJul 10Overcast——103°64°+2°
- SaturdayJul 11Overcast——102°69°-1°
AQI 29 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 5.8 µg/m³, PM10 at 8.1 µg/m³ — typical background levels with no transport signature.
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 5.8 µg/m³, PM10 at 8.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.72
- Wind
- light
- 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
- 11:25 PM
- Moonset
- 11:23 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Rosemont at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: April 7 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Rosemont
- Sun88°60°0%
- Mon87°56°1%
- Tue92°57°0%
- Wed98°59°0%
- Thu101°64°0%
- Fri103°64°0%
- Sat102°69°0%
- Sun83°70°1%
- Mon103°71°3%
- Tue109°74°5%
- Wed108°73°2%
- Thu109°71°3%
- Fri111°77°3%
- Sat106°73°3%
- Sun102°70°3%
- Mon102°66°6%
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.
ZIP codes in Rosemont
- 95827
- 95826