Today | Weather | Friday, December 12, 2025

Weather in Roseville, California

11:22 AM
Now
Cloudy Weather
46° F
Feels Like 46°
Precipitation 20 %
Wind 5 mph
UV Index (0 - 11+) 1
Humidity 96 %
Today
Rainy Weather
Day 46°
Night 37°
Precipitation 49 %
Wind 4 mph
UV Index (0 - 11+) 1

Roseville Weather Forecast Updated

4 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 12, 2024)
Rainy Weather

Day

54°

Night

46°

Wind

12 mph

Precipitation

55 %

Air Quality in Roseville

NOW
143 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 52.56 µg/m³
PM10 62.63 µg/m³
O3 0.017 ppm
NO2 21.1 ppb
SO2 1.9 ppb
CO 0.44 ppm
NH3 2.02 µg/m³
NO 19.96 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:

Members of sensitive groups may experience health effects. The general public is not likely to be affected.

Show raw pollutant concentrations (µg/m³)
PM2.552.56 µg/m³
PM1062.63 µg/m³
O333.93 µg/m³
NO239.67 µg/m³
SO24.86 µg/m³
CO501.38 µg/m³
NH32.02 µg/m³
NO19.96 µg/m³