Today | Weather | Wednesday, October 7, 2026
Active Weather Warnings

Weather in Roseville, California

07:09 AM
Now
Night
64° F
Feels Like 64°
Precipitation 0 %
Wind 5 mph
Humidity 61 %
Today
Hot Day
Day 99°
Night 63°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 4

Roseville Weather Forecast Updated

43 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 7, 2025)
Night

Day

90°

Night

57°

Wind

5 mph

Precipitation

0 %

Air Quality in Roseville

NOW
46 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 11.04 µg/m³
PM10 21.21 µg/m³
O3 0.017 ppm
NO2 15.6 ppb
SO2 1.5 ppb
CO 0.22 ppm
NH3 1.54 µg/m³
NO 0.01 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 – 11.04 µg/m³
PM10 – 21.21 µg/m³
O3 – 33.39 µg/m³
NO2 – 29.32 µg/m³
SO2 – 3.87 µg/m³
CO – 254.89 µg/m³
NH3 – 1.54 µg/m³
NO – 0.01 µg/m³

Weather Alerts and Warnings for Roseville

Moderate Expected Likely

Heat Advisory

Heat Advisory issued October 6 at 11:32AM PDT until October 9 at 10:00PM PDT by NWS Sacramento CA
Oct 6, 11:32 AM → Oct 9, 10:00 PM
WHAT: High temperatures of 94 to 102 degrees expected and overnight low temperatures in the mid 60s to low 70s, with widespread Moderate HeatRisk and areas of Major HeatRisk. WHERE: The Sacramento and northern San Joaquin Valleys, Delta and Carquinez Strait, and foothills. WHEN: Until 10 PM PDT Friday. IMPACTS: Hot temperatures may cause heat illnesses, especially to anyone without effective cooling and/or adequate hydration. ADDITIONAL DETAILS: Hottest days expected Tuesday through Thursday.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Updated: Oct 7, 6:25 AM Source: NWS Alert