Hourly Weather | Today Wednesday, March 18, 2026
Sacramento, California
1 PM
Cloudy Weather
82°
Feels Like 88°
0
Humidity: 48%
UV Index: 5
Wind: 5 mph
2 PM
Cloudy Weather
84°
Feels Like 90°
0
Humidity: 44%
UV Index: 5
Wind: 5 mph
3 PM
Sunny Weather
86°
Feels Like 90°
0
Humidity: 41%
UV Index: 4
Wind: 5 mph
4 PM
Sunny Weather
88°
Feels Like 90°
0
Humidity: 39%
UV Index: 3
Wind: 5 mph
5 PM
Sunny Weather
86°
Feels Like 88°
0
Humidity: 40%
UV Index: 2
Wind: 5 mph
6 PM
Sunny Weather
84°
Feels Like 84°
0
Humidity: 42%
UV Index: 1
Wind: 5 mph
7 PM
Sunny Weather
82°
Feels Like 81°
0
Humidity: 48%
UV Index: 0
Wind: 5 mph
8 PM
Night
81°
Feels Like 79°
0
Humidity: 56%
UV Index: 0
Wind: 5 mph
9 PM
Night
75°
Feels Like 73°
0
Humidity: 64%
UV Index: 0
Wind: 5 mph
10 PM
Night
72°
Feels Like 70°
0
Humidity: 72%
UV Index: 0
Wind: 5 mph
11 PM
Night
70°
Feels Like 68°
0
Humidity: 78%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 35.4 µg/m³
  • PM10: 42.4 µg/m³
  • O3: 0.059 ppm
  • NO2: 10.3 ppb
  • SO2: 2.4 ppb
  • CO: 0.30 ppm

Health Recommendations:

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

2 PM
120 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 39.03 µg/m³
  • PM10: 45.52 µg/m³
  • O3: 0.076 ppm
  • NO2: 8.3 ppb
  • SO2: 2.5 ppb
  • CO: 0.28 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

3 PM
148 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 37.94 µg/m³
  • PM10: 43.66 µg/m³
  • O3: 0.084 ppm
  • NO2: 6.3 ppb
  • SO2: 2.3 ppb
  • CO: 0.25 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

4 PM
158 AQI
Unhealthy air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 38.03 µg/m³
  • PM10: 43.41 µg/m³
  • O3: 0.088 ppm
  • NO2: 5.6 ppb
  • SO2: 2 ppb
  • CO: 0.24 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

5 PM
159 AQI
Unhealthy air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 36.64 µg/m³
  • PM10: 41.84 µg/m³
  • O3: 0.088 ppm
  • NO2: 5.9 ppb
  • SO2: 1.8 ppb
  • CO: 0.23 ppm

Health Recommendations:

Everyone may begin to experience health effects; sensitive groups may experience more serious effects.

6 PM
142 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 34.56 µg/m³
  • PM10: 39.77 µg/m³
  • O3: 0.083 ppm
  • NO2: 8.4 ppb
  • SO2: 1.7 ppb
  • CO: 0.24 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

7 PM
103 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 32.8 µg/m³
  • PM10: 38.18 µg/m³
  • O3: 0.071 ppm
  • NO2: 12.9 ppb
  • SO2: 1.6 ppb
  • CO: 0.26 ppm

Health Recommendations:

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

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

Pollutant Concentrations:

  • PM2.5: 31.45 µg/m³
  • PM10: 37.09 µg/m³
  • O3: 0.059 ppm
  • NO2: 15.9 ppb
  • SO2: 1.6 ppb
  • CO: 0.28 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 31.83 µg/m³
  • PM10: 37.89 µg/m³
  • O3: 0.049 ppm
  • NO2: 18 ppb
  • SO2: 1.5 ppb
  • CO: 0.30 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 33.06 µg/m³
  • PM10: 39.67 µg/m³
  • O3: 0.041 ppm
  • NO2: 19.7 ppb
  • SO2: 1.4 ppb
  • CO: 0.32 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 33.47 µg/m³
  • PM10: 40.57 µg/m³
  • O3: 0.034 ppm
  • NO2: 20.6 ppb
  • SO2: 1.2 ppb
  • CO: 0.33 ppm

Health Recommendations:

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