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Today | Weather | Tuesday, November 4, 2025
Active Weather Warnings

Weather in Santa Rosa, California

02:17 AM
Now
Cloudy Weather
55° F
Feels Like 55°
Precipitation 0 %
Wind 4 mph
Humidity 93 %
Today
Cloudy Weather
Day 68°
Night 54°
Precipitation 11 %
Wind 6 mph
UV Index (0 - 11+) 2

Santa Rosa Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (November 4, 2024)

Cloudy Night

Day

77°

Night

45°

Wind

4 mph

Precipitation

2

Air Quality in Santa Rosa

NOW
33 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4 µg/m³
PM10 10.87 µg/m³
O3 0.036 ppm
NO2 1 ppb
SO2 0.3 ppb
CO 0.09 ppm
NH3 0 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.5 – 4 µg/m³
PM10 – 10.87 µg/m³
O3 – 70.41 µg/m³
NO2 – 1.93 µg/m³
SO2 – 0.8 µg/m³
CO – 103.9 µg/m³
NH3 – 0 µg/m³
NO – 0 µg/m³
View Hourly Air Quality Forecast

Weather Alerts and Warnings for Santa Rosa

Moderate Expected Likely

Wind Advisory

Wind Advisory issued November 3 at 11:58AM 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 Tuesday 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
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, 12:39 AM Source: NWS Alert
Minor Expected Likely

Coastal Flood Advisory

Coastal Flood Advisory issued November 2 at 10:40PM 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, 12:39 AM Source: NWS Alert