Today | Weather | Tuesday, August 25, 2026

Active Weather Warnings

Weather in El Monte, California

05:26 AM

Now

72° F

Feels Like 72°

Precipitation 0 %

Wind 4 mph

Humidity 80 %

Today

Day 102°

Night 72°

Precipitation 0 %

Wind 7 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.

El Monte Weather Forecast Updated

5 minutes ago

Last updated on August 25, 2026 at 5:21 AM

Weather Forecast History

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

Day

93°

Night

66°

Wind

4 mph

Precipitation

1 %

Air Quality in El Monte

NOW

35 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 7.49 µg/m³

PM₁₀ 20.72 µg/m³

O₃ 0.038 ppm

NO₂ 0.3 ppb

SO₂ 0.2 ppb

CO 0.06 ppm

NH₃ 0 µg/m³

NO 0 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 7.49 µg/m³

PM₁₀ – 20.72 µg/m³

O₃ – 73.95 µg/m³

NO₂ – 0.63 µg/m³

SO₂ – 0.55 µg/m³

CO – 71.72 µg/m³

NH₃ – 0 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for El Monte

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: For the Heat Advisory, temperatures up to 107 expected. For
the Extreme Heat Watch, dangerously hot conditions with
temperatures up to 112 possible.

WHERE: A portion of southwest California.

WHEN: For the Heat Advisory, from 10 AM this morning to 10 AM PDT
Tuesday. For the Extreme Heat Watch, 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, 12:41 PM Source: NWS Alert

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued August 25 at 12:02AM 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: For the Heat Advisory, temperatures up to 98. For the
Extreme Heat Warning, dangerously hot conditions with temperatures
up to 112 expected.

WHERE: A portion of southwest California.

WHEN: For the Heat Advisory, until 10 AM PDT this morning. For the
Extreme Heat Warning, from 10 AM this morning to 8 PM PDT Friday.

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 25, 5:21 AM Source: NWS Alert

Moderate Expected Likely

Heat Advisory

Heat Advisory issued August 25 at 12:02AM PDT until August 25 at 10:00AM PDT by NWS Los Angeles/Oxnard CA

Aug 25, 12:02 AM → Aug 25, 10:00 AM

+ 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 25, 5:21 AM Source: NWS Alert

Weather in El Monte, California

Warning: High UV Index Today: 9

El Monte Weather Forecast Updated

Day

Night

Wind

Precipitation

Air Quality in El Monte

Pollutant Concentrations:

Health Recommendations:

Weather Alerts and Warnings for El Monte

Extreme Heat Watch

Extreme Heat Warning

Heat Advisory

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