Hourly Weather | Today Sunday, November 2, 2025
Active Weather Warnings
Downey, California
8 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 86%
Wind: 4 mph
UV Index: 0
9 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 86%
Wind: 4 mph
UV Index: 0
10 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 87%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
61°
Feels Like 63°
0
Humidity: 88%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

8 PM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.93 µg/m³
  • PM10: 22.08 µg/m³
  • O3: 0.043 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.85 µg/m³
  • PM10: 21.95 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
41 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.73 µg/m³
  • PM10: 21.83 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.6 µg/m³
  • PM10: 21.73 µg/m³
  • O3: 0.042 ppm
  • NO2: 0.2 ppb
  • SO2: 0.2 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Weather Alerts and Warnings for Downey

Air Quality Alert

Air Quality Alert issued November 2 at 2:17PM PST by NWS Los Angeles/Oxnard CA
Nov 2, 2:17 PM Nov 4, 12:00 AM
WHAT: The South Coast AQMD has issued a mandatory wood-burning ban
for residents in the South Coast Air Basin. The No-Burn rule bans
burning wood, pellets, and manufactured fire logs in any indoor or
outdoor wood-burning device.

WHERE: The South Coast Air Basin, which includes Orange County and
non- desert portions of Los Angeles. No-Burn Day alerts do not
apply to areas above 3,000 feet in elevation or the High Desert.
Homes that rely on wood as a sole source of heat, low-income
households and those without natural gas service also are exempt
from the requirement.

WHEN: Monday.

IMPACTS: Particles in smoke can get deep into the lungs and cause
health problems (including asthma attacks), increases in emergency
room visits, and hospitalizations. No-Burn Days are needed to
protect public health when fine particle pollution levels are
expected to be high anywhere in the South Coast Air Basin. No-Burn
Days are based on fine particle pollution levels that are
forecasted for an entire 24-hour period, which may not be reflected
in real-time air quality maps.
+ Read More
To protect your health, check current and forecasted air quality levels at www.aqmd.gov or download the mobile app at www.aqmd.gov/mobileapp. When air quality is poor in your area, limited extended or intense outdoor activity and remain inside with windows and doors closed. Run your air conditioner and/or an air purifier and avoid using devices that bring in outside air like a swamp cooler or whole house fan if you have other ways to stay cool. Additional details for this air quality alert are available at www.aqmd.gov/advisory. Information on the South Coast AQMD Check Before You Burn program is available at www.aqmd.gov/cbyb.
Updated: Nov 2, 6:10 PM Source: NWS Alert