Hourly Weather | Today Wednesday, March 18, 2026
Elk Grove, California
10 AM
Cloudy Weather
68°
Feels Like 72°
0
Humidity: 76%
UV Index: 3
Wind: 5 mph
11 AM
Cloudy Weather
73°
Feels Like 79°
0
Humidity: 68%
UV Index: 4
Wind: 5 mph
12 PM
Cloudy Weather
79°
Feels Like 84°
0
Humidity: 59%
UV Index: 5
Wind: 5 mph
1 PM
Cloudy Weather
81°
Feels Like 88°
0
Humidity: 52%
UV Index: 5
Wind: 5 mph
2 PM
Cloudy Weather
84°
Feels Like 90°
0
Humidity: 48%
UV Index: 5
Wind: 5 mph
3 PM
Sunny Weather
86°
Feels Like 91°
0
Humidity: 45%
UV Index: 4
Wind: 5 mph
4 PM
Sunny Weather
88°
Feels Like 90°
0
Humidity: 42%
UV Index: 3
Wind: 5 mph
5 PM
Sunny Weather
86°
Feels Like 88°
0
Humidity: 44%
UV Index: 2
Wind: 5 mph
6 PM
Sunny Weather
84°
Feels Like 84°
0
Humidity: 46%
UV Index: 1
Wind: 5 mph
7 PM
Sunny Weather
81°
Feels Like 79°
0
Humidity: 54%
UV Index: 0
Wind: 5 mph
8 PM
Night
79°
Feels Like 77°
0
Humidity: 59%
UV Index: 0
Wind: 5 mph
9 PM
Night
73°
Feels Like 72°
0
Humidity: 68%
UV Index: 0
Wind: 5 mph
10 PM
Night
70°
Feels Like 68°
0
Humidity: 75%
UV Index: 0
Wind: 5 mph
11 PM
Night
66°
Feels Like 64°
0
Humidity: 82%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

10 AM
152 AQI
Unhealthy air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 58.97 µg/m³
  • PM10: 68.6 µg/m³
  • O3: 0.023 ppm
  • NO2: 16.9 ppb
  • SO2: 1.5 ppb
  • CO: 0.42 ppm

Health Recommendations:

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

11 AM
145 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 53.37 µg/m³
  • PM10: 63.07 µg/m³
  • O3: 0.031 ppm
  • NO2: 17.1 ppb
  • SO2: 1.5 ppb
  • CO: 0.43 ppm

Health Recommendations:

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

12 PM
126 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 45.65 µg/m³
  • PM10: 52.9 µg/m³
  • O3: 0.059 ppm
  • NO2: 11.3 ppb
  • SO2: 2.5 ppb
  • CO: 0.33 ppm

Health Recommendations:

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

1 PM
131 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 47.82 µg/m³
  • PM10: 54.6 µg/m³
  • O3: 0.077 ppm
  • NO2: 8.7 ppb
  • SO2: 2.7 ppb
  • CO: 0.31 ppm

Health Recommendations:

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

2 PM
178 AQI
Unhealthy air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 50.92 µg/m³
  • PM10: 57.26 µg/m³
  • O3: 0.096 ppm
  • NO2: 6.6 ppb
  • SO2: 2.8 ppb
  • CO: 0.29 ppm

Health Recommendations:

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

3 PM
194 AQI
Unhealthy air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 46.94 µg/m³
  • PM10: 52.5 µg/m³
  • O3: 0.102 ppm
  • NO2: 5.1 ppb
  • SO2: 2.5 ppb
  • CO: 0.26 ppm

Health Recommendations:

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

4 PM
203 AQI
Very unhealthy air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 48.47 µg/m³
  • PM10: 53.93 µg/m³
  • O3: 0.108 ppm
  • NO2: 5.1 ppb
  • SO2: 2.4 ppb
  • CO: 0.26 ppm

Health Recommendations:

Health alert: the risk of health effects is increased for everyone.

5 PM
205 AQI
Very unhealthy air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 48.64 µg/m³
  • PM10: 54.12 µg/m³
  • O3: 0.110 ppm
  • NO2: 6 ppb
  • SO2: 2.4 ppb
  • CO: 0.26 ppm

Health Recommendations:

Health alert: the risk of health effects is increased for everyone.

6 PM
200 AQI
Unhealthy air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 48.2 µg/m³
  • PM10: 53.88 µg/m³
  • O3: 0.105 ppm
  • NO2: 9 ppb
  • SO2: 2.4 ppb
  • CO: 0.28 ppm

Health Recommendations:

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

7 PM
170 AQI
Unhealthy air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 48.08 µg/m³
  • PM10: 54.11 µg/m³
  • O3: 0.093 ppm
  • NO2: 14.2 ppb
  • SO2: 2.3 ppb
  • CO: 0.31 ppm

Health Recommendations:

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

8 PM
131 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 47.99 µg/m³
  • PM10: 54.49 µg/m³
  • O3: 0.079 ppm
  • NO2: 16.9 ppb
  • SO2: 2.3 ppb
  • CO: 0.33 ppm

Health Recommendations:

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

9 PM
136 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 49.78 µg/m³
  • PM10: 56.84 µg/m³
  • O3: 0.066 ppm
  • NO2: 19.2 ppb
  • SO2: 2.1 ppb
  • CO: 0.36 ppm

Health Recommendations:

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

10 PM
144 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 52.82 µg/m³
  • PM10: 60.61 µg/m³
  • O3: 0.055 ppm
  • NO2: 21.5 ppb
  • SO2: 1.9 ppb
  • CO: 0.39 ppm

Health Recommendations:

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

11 PM
148 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 54.66 µg/m³
  • PM10: 63.14 µg/m³
  • O3: 0.045 ppm
  • NO2: 23.2 ppb
  • SO2: 1.7 ppb
  • CO: 0.41 ppm

Health Recommendations:

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