Today | Weather | Tuesday, April 21, 2026

Weather in Thousand Oaks, California

05:27 PM
Now
Cloudy Weather
64° F
Feels Like 64°
Precipitation 40 %
Wind 10 mph
UV Index (0 - 11+) 2
Humidity 70 %
Today
Partly Sunny with Showers
Day 64°
Night 48°
Precipitation 96 %
Wind 9 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.

Thousand Oaks Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 21, 2025)
Cloudy Weather

Day

73°

Night

52°

Wind

7 mph

UV Index

10

Precipitation

0 %

Air Quality in Thousand Oaks

NOW
60 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.14 µg/m³
PM10 3.43 µg/m³
O3 0.057 ppm
NO2 0.1 ppb
SO2 0.1 ppb
CO 0.12 ppm
NH3 0 µg/m³
NO 0.02 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 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)
PM2.51.14 µg/m³
PM103.43 µg/m³
O3112.27 µg/m³
NO20.16 µg/m³
SO20.33 µg/m³
CO135.01 µg/m³
NH30 µg/m³
NO0.02 µg/m³