Hourly Weather | Today Thursday, February 5, 2026
Santa Rosa, California
8 PM
Cloudy Night
57°
Feels Like 57°
0
Humidity: 69%
UV Index: 0
Wind: 5 mph
9 PM
Cloudy Night
54°
Feels Like 55°
0
Humidity: 79%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
50°
Feels Like 52°
0
Humidity: 91%
UV Index: 0
Wind: 2 mph
11 PM
Cloudy Night
48°
Feels Like 48°
0
Humidity: 98%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

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

Pollutant Concentrations:

  • PM2.5: 49.57 µg/m³
  • PM10: 56.02 µg/m³
  • O3: 0.048 ppm
  • NO2: 6.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.32 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 48.83 µg/m³
  • PM10: 55.55 µg/m³
  • O3: 0.046 ppm
  • NO2: 6.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.32 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 48.55 µg/m³
  • PM10: 55.7 µg/m³
  • O3: 0.045 ppm
  • NO2: 5.9 ppb
  • SO2: 0.6 ppb
  • CO: 0.31 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 48.45 µg/m³
  • PM10: 55.63 µg/m³
  • O3: 0.047 ppm
  • NO2: 4.8 ppb
  • SO2: 0.7 ppb
  • CO: 0.30 ppm

Health Recommendations:

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