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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Saturday, December 20, 2025
Active Weather Warnings
Riverside, California
4 PM
Cloudy Weather
68°
Feels Like 66°
0
Humidity: 47%
Wind: 6 mph
UV Index: 1
5 PM
Cloudy Night
64°
Feels Like 63°
0
Humidity: 57%
Wind: 6 mph
UV Index: 0
6 PM
Cloudy Night
63°
Feels Like 63°
0
Humidity: 68%
Wind: 5 mph
UV Index: 0
7 PM
Cloudy Night
59°
Feels Like 57°
0
Humidity: 80%
Wind: 5 mph
UV Index: 0
8 PM
Cloudy Night
55°
Feels Like 55°
0
Humidity: 88%
Wind: 5 mph
UV Index: 0
9 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 91%
Wind: 5 mph
UV Index: 0
10 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 92%
Wind: 4 mph
UV Index: 0
11 PM
Cloudy Night
54°
Feels Like 54°
0
Humidity: 92%
Wind: 4 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

4 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.18 µg/m³
  • PM10: 24.17 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.34 µg/m³
  • PM10: 24.11 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.67 µg/m³
  • PM10: 24.26 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
54 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.1 µg/m³
  • PM10: 24.59 µg/m³
  • O3: 0.043 ppm
  • NO2: 1.5 ppb
  • SO2: 0.7 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.69 µg/m³
  • PM10: 25.26 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 PM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.5 µg/m³
  • PM10: 26.3 µg/m³
  • O3: 0.041 ppm
  • NO2: 2 ppb
  • SO2: 0.9 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 PM
60 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 16.66 µg/m³
  • PM10: 27.64 µg/m³
  • O3: 0.040 ppm
  • NO2: 2.4 ppb
  • SO2: 1 ppb
  • CO: 0.18 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 PM
62 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 17.84 µg/m³
  • PM10: 28.89 µg/m³
  • O3: 0.039 ppm
  • NO2: 2.7 ppb
  • SO2: 1 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Riverside

Air Quality Alert

Air Quality Alert issued December 19 at 6:19PM PST by NWS San Diego CA
Dec 19, 6:19 PM → Dec 20, 6:30 PM
WHAT: The South Coast AQMD has extended 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, Riverside, and San
Bernardino counties. No-Burn Day alerts do not apply to areas above
3,000 feet in elevation, the Coachella Valley, 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: Friday and Saturday.

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: Dec 20, 3:15 PM Source: NWS Alert