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Today | Weather | Monday, November 3, 2025
Active Weather Warnings

Weather in Norwalk, California

08:33 AM
Now
Cloudy Weather
64° F
Feels Like 66°
Precipitation 27 %
Wind 2 mph
UV Index (0 - 11+) 1
Humidity 79 %
Today
Cloudy Weather
Day 72°
Night 55°
Precipitation 40 %
Wind 5 mph
UV Index (0 - 11+) 4

Norwalk Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (November 3, 2024)

Night

Day

73°

Night

48°

Wind

4 mph

Precipitation

0

Air Quality in Norwalk

NOW
44 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 10.51 µg/m³
PM10 21.63 µg/m³
O3 0.045 ppm
NO2 0.2 ppb
SO2 0.2 ppb
CO 0.10 ppm
NH3 0 µg/m³
NO 0.01 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.5 – 10.51 µg/m³
PM10 – 21.63 µg/m³
O3 – 88.78 µg/m³
NO2 – 0.42 µg/m³
SO2 – 0.44 µg/m³
CO – 117.86 µg/m³
NH3 – 0 µg/m³
NO – 0.01 µg/m³
View Hourly Air Quality Forecast

Weather Alerts and Warnings for Norwalk

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 3, 7:07 AM Source: NWS Alert