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Hourly Weather | Today › Tuesday, November 4, 2025
Active Weather Warnings
Santa Rosa, California
7 AM
Cloudy Weather
54°
Feels Like 54°
1
Humidity: 100%
Wind: 5 mph
UV Index: 0
8 AM
Cloudy Weather
55°
Feels Like 55°
1
Humidity: 100%
Wind: 5 mph
UV Index: 0
9 AM
Cloudy Weather
57°
Feels Like 57°
1
Humidity: 94%
Wind: 5 mph
UV Index: 1
10 AM
Cloudy Weather
61°
Feels Like 61°
1
Humidity: 88%
Wind: 6 mph
UV Index: 1
11 AM
Cloudy Weather
63°
Feels Like 64°
1
Humidity: 81%
Wind: 6 mph
UV Index: 2
12 PM
Cloudy Weather
64°
Feels Like 66°
1
Humidity: 75%
Wind: 7 mph
UV Index: 2
1 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 70%
Wind: 7 mph
UV Index: 2
2 PM
Cloudy Weather
68°
Feels Like 68°
0
Humidity: 66%
Wind: 8 mph
UV Index: 2
3 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 70%
Wind: 7 mph
UV Index: 1
4 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 74%
Wind: 7 mph
UV Index: 1
5 PM
Cloudy Weather
61°
Feels Like 61°
0
Humidity: 80%
Wind: 7 mph
UV Index: 0
6 PM
Cloudy Night
61°
Feels Like 57°
0
Humidity: 83%
Wind: 7 mph
UV Index: 0
7 PM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 88%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 88%
Wind: 7 mph
UV Index: 0
9 PM
Cloudy Weather
57°
Feels Like 55°
0
Humidity: 89%
Wind: 7 mph
UV Index: 0
10 PM
Cloudy Weather
57°
Feels Like 54°
0
Humidity: 89%
Wind: 7 mph
UV Index: 0
11 PM
Cloudy Weather
55°
Feels Like 54°
0
Humidity: 89%
Wind: 8 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

7 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.68 µg/m³
  • PM10: 9.44 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

8 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.37 µg/m³
  • PM10: 8.48 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

9 AM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.25 µg/m³
  • PM10: 8.1 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.3 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

10 AM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.18 µg/m³
  • PM10: 7.89 µg/m³
  • O3: 0.035 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

11 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.1 µg/m³
  • PM10: 7.63 µg/m³
  • O3: 0.036 ppm
  • NO2: 0.9 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

12 PM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.12 µg/m³
  • PM10: 7.64 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

1 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.16 µg/m³
  • PM10: 7.77 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

2 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.21 µg/m³
  • PM10: 7.9 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

3 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.38 µg/m³
  • PM10: 8.35 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.5 ppb
  • SO2: 0.2 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

4 PM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.63 µg/m³
  • PM10: 8.96 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

5 PM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.89 µg/m³
  • PM10: 9.53 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

6 PM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.12 µg/m³
  • PM10: 10.09 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

7 PM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.29 µg/m³
  • PM10: 10.58 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

8 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.42 µg/m³
  • PM10: 10.98 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

9 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.5 µg/m³
  • PM10: 11.41 µg/m³
  • O3: 0.039 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

10 PM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.52 µg/m³
  • PM10: 11.8 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

11 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.3 µg/m³
  • PM10: 11.6 µg/m³
  • O3: 0.038 ppm
  • NO2: 0.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Santa Rosa

Moderate Expected Likely

Wind Advisory

Wind Advisory issued November 4 at 4:49AM PST until November 5 at 4:00PM PST by NWS San Francisco CA
Nov 4, 10:00 PM → Nov 5, 4:00 PM
WHAT: Southerly winds 25 to 35 mph with gusts up to 45 mph
expected.

WHERE: The Bay Area, North Bay, Santa Cruz Mountains, and San
Francisco Peninsula Coast.

WHEN: From 10 PM this evening to 4 PM PST Wednesday.

IMPACTS: Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.

ADDITIONAL DETAILS: Isolated gusts to 55 mph possible along North
Bay coastal areas and ridgetops Wednesday morning as the cold
front passes through. Wind gusts may exceed 60 mph in the regions
higher peaks.
+ Read More
Remain in the lower levels of your home during the strongest winds, and avoid windows. Watch for falling debris and tree limbs. Use caution if you must drive. Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure loose outdoor objects that could be blown around or damaged by the wind.
Updated: Nov 4, 5:47 AM Source: NWS Alert
Minor Expected Likely

Coastal Flood Advisory

Coastal Flood Advisory issued November 4 at 2:34AM PST until November 8 at 2:00PM PST by NWS San Francisco CA
Nov 4, 8:00 AM → Nov 8, 2:00 PM
WHAT: Up to 1.2 ft of inundation above ground level is
possible in low lying areas near shorelines and tidal
waterways.

WHERE: Bayshore locations along the San Francisco Bay and San
Pablo Bay.

WHEN: From 8 AM Tuesday to 2 PM PST Saturday.

IMPACTS: Flooding of lots, parks, and roads with only
isolated road closures expected.

ADDITIONAL DETAILS: At the San Francisco tidal gauge high
tide is expected to be 0.7 ft above normal (6.6 ft MLLW) at
9:42 AM Tuesday, 1.0 ft above normal (6.9 ft MLLW) at 10:18 AM
Wednesday, 1.2 ft above normal (7.0 ft MLLW) at 10:58 AM
Thursday, 1.1 ft above normal (7.0 ft MLLW) at 11:42 AM
Friday, and 0.9 ft above normal (6.7 ft MLLW) at 12:31 PM
Saturday. High tide timing varies up to 90 minutes earlier or
later along the coast and throughout the Bay respectfully.
+ Read More
If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.
Updated: Nov 4, 5:47 AM Source: NWS Alert