Today | Weather | Tuesday, August 25, 2026

Active Weather Warnings

Weather in Lancaster, California

12:10 PM

Now

99° F

Feels Like 106°

Precipitation 0 %

Wind 5 mph

UV Index (0 - 11+) 8

Humidity 15 %

Today

Day 106°

Night 75°

Precipitation 0 %

Wind 8 mph

UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

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

30 minutes ago

Last updated on August 25, 2026 at 11:40 AM

Weather Forecast History

Last Year's Weather on This Day (August 25, 2025)

Day

99°

Night

68°

Wind

7 mph

Precipitation

55 %

Air Quality in Lancaster

NOW

60 AQI

Moderate air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 16.51 µg/m³

PM₁₀ 32.52 µg/m³

O₃ 0.053 ppm

NO₂ 1.5 ppb

SO₂ 1.2 ppb

CO 0.12 ppm

NH₃ 0.09 µg/m³

NO 0.52 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:

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)

PM_2.5 – 16.51 µg/m³

PM₁₀ – 32.52 µg/m³

O₃ – 103.51 µg/m³

NO₂ – 2.87 µg/m³

SO₂ – 3.08 µg/m³

CO – 132.59 µg/m³

NH₃ – 0.09 µg/m³

NO – 0.52 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Lancaster

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued August 23 at 12:06AM PDT until August 28 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

Aug 25, 10:00 AM → Aug 28, 8:00 PM

WHAT: Dangerously hot conditions with temperatures up to 112
possible.

WHERE: Antelope Valley, Eastern Antelope Valley Foothills, and
Western Antelope Valley Foothills.

WHEN: From Tuesday morning through Friday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Updated: Aug 24, 11:24 AM Source: NWS Alert

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued August 25 at 10:42AM PDT until August 28 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

Aug 25, 10:42 AM → Aug 28, 8:00 PM

WHAT: Dangerously hot conditions with temperatures up to 110.

WHERE: A portion of southwest California.

WHEN: Until 8 PM PDT Friday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.