Today | Weather | Sunday, January 18, 2026

Weather in Lancaster, California

11:50 PM
Now
Cloudy Night
37° F
Feels Like 32°
Precipitation 0 %
Wind 7 mph
Humidity 71 %
Today
Sunny Weather
Day 68°
Night 28°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 3

Lancaster Weather Forecast Updated

59 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (January 18, 2025)
Sunny Weather

Day

63°

Night

25°

Wind

4 mph

UV Index

3

Precipitation

0 %

Air Quality in Lancaster

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

Pollutant Concentrations:

PM2.5 14.53 µg/m³
PM10 20.5 µg/m³
O3 0.033 ppm
NO2 3 ppb
SO2 0.3 ppb
CO 0.18 ppm
NH3 0.21 µg/m³
NO 0 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.514.53 µg/m³
PM1020.5 µg/m³
O365.52 µg/m³
NO25.6 µg/m³
SO20.78 µg/m³
CO208.96 µg/m³
NH30.21 µg/m³
NO0 µg/m³