Today | Weather | Wednesday, March 18, 2026
Active Weather Warnings

Weather in Thousand Oaks, California

02:05 AM
Now
Night
64° F
Feels Like 63°
Precipitation 7 %
Wind 6 mph
Humidity 59 %
Today
Sunny Weather
Day 93°
Night 61°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 6

Thousand Oaks Weather Forecast Updated

26 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Sunny Weather

Day

64°

Night

46°

Wind

9 mph

UV Index

6

Precipitation

25 %

Air Quality in Thousand Oaks

NOW
72 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 22.18 µg/m³
PM10 33.43 µg/m³
O3 0.051 ppm
NO2 0.5 ppb
SO2 0.2 ppb
CO 0.15 ppm
NH3 0.03 µg/m³
NO 0 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)
PM2.522.18 µg/m³
PM1033.43 µg/m³
O399.41 µg/m³
NO20.98 µg/m³
SO20.65 µg/m³
CO174.83 µg/m³
NH30.03 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Thousand Oaks

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued March 15 at 12:07AM PDT until March 20 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
Mar 16, 8:00 PM Mar 20, 8:00 PM
WHAT: For the Heat Advisory, temperatures of 82 to 98 expected..
For the Extreme Heat Watch, dangerously hot conditions with
temperatures of 90 to 104 are possible.

WHERE: A portion of southwest California.

WHEN: For the Heat Advisory, from 10 AM to 8 PM PDT Monday. For
the Extreme Heat Watch, from Monday evening through Friday evening.

IMPACTS: There is a high risk for dangerous heat illness for
anyone, especially for the very young, the very old, those without
air conditioning, and those active outdoors. There is a high risk
for heat illness for sensitive populations including the very
young, the very old, those without air conditioning, and those
active outdoors.
+ 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: Mar 15, 10:20 AM Source: NWS Alert
Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued March 17 at 1:21PM PDT until March 20 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
Mar 17, 1:21 PM Mar 20, 8:00 PM
WHAT: Dangerously hot conditions with high temperatures between
96 and 104 expected.

WHERE: Most valley, lower mountain, and inland coastal areas of
southwest California.

WHEN: Until 8 PM PDT Friday.

IMPACTS: There is a high risk for dangerous heat illness for
anyone, especially for the very young, the very old, those without
air conditioning, and those active outdoors.

ADDITIONAL DETAILS: Warm overnight low temperatures will
contribute to the heat risk, especially in the mountain and
foothill locations.
+ 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: Mar 18, 1:38 AM Source: NWS Alert