Today | Weather | Wednesday, September 24, 2025

Weather in Santa Rosa, California

02:49 PM
Now
Rainy Weather
79° F
Feels Like 75°
Precipitation 43 %
Wind 8 mph
UV Index (0 - 11+) 11
Humidity 48 %
Today
Partly Sunny with Showers
Day 79°
Night 57°
Precipitation 65 %
Wind 11
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Santa Rosa Weather Forecast Updated

12 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (September 24, 2024)

Cloudy Night

Day

95°

Night

54°

Wind

6 mph

Precipitation

0

Air quality in Santa Rosa

NOW
53 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 8.13 µg/m³
PM10 11.17 µg/m³
O₃ 48.32 ppb
NO₂ 0.84 ppb
SO₂ 0.47 ppb
CO 135.88 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.