Today | Weather | Tuesday, April 21, 2026

Weather in Temecula, California

04:14 PM
Now
Cloudy Weather
64° F
Feels Like 64°
Precipitation 2 %
Wind 13 mph
UV Index (0 - 11+) 2
Humidity 57 %
Today
Cloudy Weather
Day 70°
Night 46°
Precipitation 12 %
Wind 8 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

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.

Temecula Weather Forecast Updated

20 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 21, 2025)
Sunny Weather

Day

77°

Night

46°

Wind

7 mph

UV Index

10

Precipitation

0 %

Air Quality in Temecula

NOW
47 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.56 µg/m³
PM10 7.49 µg/m³
O3 0.051 ppm
NO2 0.1 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 0 µg/m³
NO 0.03 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)
PM2.52.56 µg/m³
PM107.49 µg/m³
O3100.67 µg/m³
NO20.26 µg/m³
SO20.54 µg/m³
CO123.29 µg/m³
NH30 µg/m³
NO0.03 µg/m³