Today | Weather | Thursday, October 8, 2026

Active Weather Warnings

Extreme Heat Warning

Weather in Murrieta, California

05:49 AM

Now

66° F

Feels Like 64°

Precipitation 0 %

Wind 5 mph

Humidity 52 %

Today

Day 100°

Night 63°

Precipitation 0 %

Wind 7 mph

UV Index (0 - 11+) 5

Murrieta Weather Forecast Updated

Last updated on October 08, 2026 at 4:36 AM

Weather Forecast History

Last Year's Weather on This Day (October 8, 2025)

Day

79°

Night

52°

Wind

4 mph

Precipitation

4 %

Air Quality in Murrieta

NOW

46 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 10.93 µg/m³

PM₁₀ 22.69 µg/m³

O₃ 0.040 ppm

NO₂ 0.3 ppb

SO₂ 0.2 ppb

CO 0.09 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 – 10.93 µg/m³

PM₁₀ – 22.69 µg/m³

O₃ – 79.18 µg/m³

NO₂ – 0.65 µg/m³

SO₂ – 0.51 µg/m³

CO – 106.92 µg/m³

NH₃ – 0 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Murrieta

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued October 8 at 12:19AM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

Oct 8, 12:19 AM → Oct 8, 8:00 PM

WHAT: Dangerously hot conditions with high temperatures in the
upper 90s to 103.

WHERE: San Bernardino and Riverside County Valleys-The Inland
Empire.

WHEN: Until 8 PM PDT this evening.

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

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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

Updated: Oct 8, 4:36 AM Source: NWS Alert