London, California Weather
Summer solstice light stretched thin. Day 88 of spring. Read this microseason across nine climate regions →
London weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Clear——98°67°—
- TuesdayJun 16Clear——99°69°+1°
- WednesdayJun 17Clear——106°65°+7°
- ThursdayJun 18Clear——105°64°-1°
- FridayJun 19Clear——101°58°-4°
- SaturdayJun 20Clear——97°52°-4°
- SundayJun 21Clear——97°53°0°
AQI 48 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.65 fine-to-coarse ratio and 2 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 8.1 µg/m³ (AQI 45) with a 0.65 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.65
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:50 AM
- Moonset
- 8:35 PM
- In sign
- ♋︎ Cancer
Summer solstice light stretched thin
London at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: March 26 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — London
- Mon98°67°1%
- Tue99°69°0%
- Wed106°65°0%
- Thu105°64°0%
- Fri101°58°0%
- Sat97°52°0%
- Sun97°53°0%
- Mon103°57°0%
- Tue108°61°0%
- Wed111°63°0%
- Thu105°60°0%
- Fri100°56°3%
- Sat101°56°0%
- Sun105°58°0%
- Mon109°62°0%
- Tue109°63°3%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 London
- 93618