Today | Weather | Friday, April 3, 2026

Weather in Lancaster, California

10:26 AM
Now
Sunny Weather
48° F
Feels Like 45°
Precipitation 0 %
Wind 15 mph
UV Index (0 - 11+) 4
Humidity 23 %
Today
Sunny Weather
Day 73°
Night 37°
Precipitation 1 %
Wind 15 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Lancaster Weather Forecast Updated

55 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 3, 2025)
Partly Sunny with Showers

Day

64°

Night

36°

Wind

7 mph

UV Index

8

Precipitation

44 %

Air Quality in Lancaster

NOW
40 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 8.37 µg/m³
PM10 22.28 µg/m³
O3 0.043 ppm
NO2 6.3 ppb
SO2 2.2 ppb
CO 0.17 ppm
NH3 0.3 µg/m³
NO 2.52 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)
PM2.58.37 µg/m³
PM1022.28 µg/m³
O384.59 µg/m³
NO211.89 µg/m³
SO25.81 µg/m³
CO199.59 µg/m³
NH30.3 µg/m³
NO2.52 µg/m³