Today | Weather | Tuesday, March 17, 2026

Weather in Lancaster, California

12:00 AM
Now
Cloudy Night
63° F
Feels Like 61°
Precipitation 0 %
Wind 6 mph
Humidity 50 %
Today
Sunny Weather
Day 91°
Night 48°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 6

Lancaster Weather Forecast Updated

23 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 17, 2025)
Partly Sunny with Showers

Day

63°

Night

39°

Wind

19 mph

UV Index

4

Precipitation

90 %

Air Quality in Lancaster

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

Pollutant Concentrations:

PM2.5 15.67 µg/m³
PM10 20.55 µg/m³
O3 0.047 ppm
NO2 4 ppb
SO2 0.3 ppb
CO 0.19 ppm
NH3 0.39 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)
PM2.515.67 µg/m³
PM1020.55 µg/m³
O391.6 µg/m³
NO27.48 µg/m³
SO20.9 µg/m³
CO218.67 µg/m³
NH30.39 µg/m³
NO0 µg/m³