Monrovia, California Weather
Summer solstice light stretched thin. Day 86 of spring. Read this microseason across nine climate regions →
Monrovia weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 13Clear——89°62°—
- SundayJun 14Foggy——88°58°-1°
- MondayJun 15Mostly Clear——89°71°+1°
- TuesdayJun 16Clear——88°72°-1°
- WednesdayJun 17Clear——89°70°+1°
- ThursdayJun 18Clear——89°70°0°
- FridayJun 19Clear——89°71°0°
AQI 62 (Moderate), driven by PM2.5. AQI down 10 over the last 6 hours (gradual decline). PM2.5 at 14.3 µg/m³ (AQI 61) with a 0.80 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 14.3 µg/m³ (AQI 61) with a 0.80 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.80
- 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
- 3:56 AM
- Moonset
- 5:59 PM
- In sign
- ♉︎ Taurus
Summer solstice light stretched thin
Monrovia at a glance
- Today vs. normal: 16°F below the seasonal normal for this latitude
- Last frost: March 12 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Prune spring-blooming shrubs after flowers fade.
15-Day Forecast — Monrovia
- Sat89°61°0%
- Sun88°58°0%
- Mon89°71°0%
- Tue88°72°0%
- Wed89°70°1%
- Thu89°70°0%
- Fri89°71°0%
- Sat86°68°0%
- Sun80°64°0%
- Mon82°63°0%
- Tue88°68°0%
- Wed94°72°0%
- Thu103°78°0%
- Fri109°87°3%
- Sat102°84°0%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 13, 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 Monrovia
- 91016
- 91017
- 91185