Today | Weather | Monday, September 1, 2025

Heat Advisory (Issued when high temperatures and humidity create conditions that may be hazardous during outdoor activity or prolonged exposure.)

Weather in Roseville, California

08:06 AM

Now

66° F

Feels Like 66°

Precipitation 0 %

Wind 5 mph

UV Index (0 - 11+) 11

Humidity 62 %

Today

Day 102°

Night 72°

Precipitation 0 %

Wind 6 mph

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.

Other:

Sizzling bright sun and hot; caution advised if outside for extended periods of time.

Roseville Weather Forecast Updated

Last updated on September 01, 2025 7:04 AM

Weather Forecast History

Last Year's Weather on This Day (September 1, 2024)

Day

93°

Night

57°

Wind

8 mph

UV Index

Precipitation

Air quality in Roseville

NOW

51 AQI

Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 8.14 µg/m³

PM10 12.16 µg/m³

O₃ 27.05 ppb

NO₂ 9.60 ppb

SO₂ 0.92 ppb

CO 148.88 ppb

PM_2.5 – 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.

View Hourly Air Quality Forecast