Today | Weather | Friday, February 6, 2026

Weather in Simi Valley, California

12:33 AM
Now
Cloudy Night
52° F
Feels Like 52°
Precipitation 0 %
Wind 5 mph
Humidity 84 %
Today
Cloudy Weather
Day 72°
Night 48°
Precipitation 14 %
Wind 7 mph
UV Index (0 - 11+) 4

Simi Valley Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 6, 2025)
Rainy Weather

Day

63°

Night

54°

Wind

8 mph

UV Index

2

Precipitation

67 %

Air Quality in Simi Valley

NOW
138 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 50.43 µg/m³
PM10 74.27 µg/m³
O3 0.053 ppm
NO2 0.6 ppb
SO2 0.1 ppb
CO 0.24 ppm
NH3 0 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:

Members of sensitive groups may experience health effects. The general public is not likely to be affected.

Show raw pollutant concentrations (µg/m³)
PM2.550.43 µg/m³
PM1074.27 µg/m³
O3104.97 µg/m³
NO21.05 µg/m³
SO20.31 µg/m³
CO270.83 µg/m³
NH30 µg/m³
NO0 µg/m³