Today | Weather | Sunday, December 14, 2025

Active Weather Warnings

Dense Fog Advisory

Weather in Roseville, California

05:02 AM

Now

39° F

Feels Like 36°

Precipitation 34 %

Wind 6 mph

Humidity 99 %

Today

Day 46°

Night 39°

Precipitation 0 %

Wind 5 mph

UV Index (0 - 11+) 2

Roseville Weather Forecast Updated

Last updated on December 14, 2025 at 3:55 AM

Weather Forecast History

Last Year's Weather on This Day (December 14, 2024)

Day

57°

Night

41°

Wind

7 mph

Precipitation

25 %

Air Quality in Roseville

NOW

159 AQI

Unhealthy air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 72.5 µg/m³

PM₁₀ 85.77 µg/m³

O₃ 0.002 ppm

NO₂ 38.8 ppb

SO₂ 2.5 ppb

CO 0.52 ppm

NH₃ 4.49 µg/m³

NO 7.8 µg/m³

PM_2.5 – 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:

Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 72.5 µg/m³

PM₁₀ – 85.77 µg/m³

O₃ – 3.76 µg/m³

NO₂ – 73.02 µg/m³

SO₂ – 6.46 µg/m³

CO – 590.49 µg/m³

NH₃ – 4.49 µg/m³

NO – 7.8 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Roseville

Moderate Expected Likely

Dense Fog Advisory

Dense Fog Advisory issued December 14 at 12:23AM PST until December 14 at 11:00AM PST by NWS Sacramento CA

Dec 14, 12:23 AM → Dec 14, 11:00 AM

WHAT: Visibility one quarter mile or less in dense fog.

WHERE: Carquinez Strait, Delta, and the Sacramento Valley.

WHEN: Until 11 AM PST this morning.

IMPACTS: Low visibility could make driving conditions hazardous.

ADDITIONAL DETAILS: Find the latest road conditions at
quickmap.dot.ca.gov

+ Read More

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Updated: Dec 14, 3:55 AM Source: NWS Alert