Air Quality in Simi Valley, United States

Windy
28.7°C · 21.4% humidity
28.7°
Feels 28.7°
41
Good
Air quality is satisfactory. Enjoy outdoor activities.
33 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
35 4pm
29
17
41 7pm
32
25
20 10pm
37
34
32 1am
31
30
30 4am
29
29
29 7am
28
28
28 10am
28
28
28 1pm
28
28
Station readings
35
29
17
CAMS model adj -26
54
54
54
34
34
34
34
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

47h · 2 stn

Simi Valley's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

21.4%
Humidity
53.8 km/h
Wind W
1008.8 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
41
9.92 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Simi Valley?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.59.92 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (33 stations within 25 km)
9.92
Median
10.43
Average
3.48
Low
13.1
High
PM2.5 µg/m³ · Model: 10.0 · Bias: +0.1

What is the 7-day forecast for Simi Valley?

06-09
28.7° 15.0°
06-10
30.6° 15.1°
06-11
30.4° 15.4°
06-12
31.3° 15.9°
06-13
34.5° 16.2°
06-14
30.3° 18.1°
06-15
26.4° 14.8°
Both models agree Avg diff: 3.3°C

Where are air quality stations near Simi Valley?

13
united-states-of-america-moorpark-fishers-court
8.8 km 24.0°C 45.0% RH PM2.5: 3.2 µg/m³ PM10: 4.9 µg/m³
53
Simi Valley - Cochran Street, Ventura, California
9.0 km PM2.5: 13.1 µg/m³
44
Thousand Oaks-Moorpark Road, Ventura, California
10.5 km PM2.5: 10.6 µg/m³
48
Justice St ES (4692)
14.7 km PM2.5: 11.4 µg/m³
43
Haynes ES (4473)
15.1 km PM2.5: 10.4 µg/m³
27
Piru - Pacific, Ventura, California
15.2 km PM2.5: 6.5 µg/m³
43
Welby ES (7637)
15.8 km PM2.5: 10.3 µg/m³
52
Chatsworth ES (3027)
16.1 km PM2.5: 12.8 µg/m³
50
Nevada ES (5459)
16.8 km PM2.5: 12.0 µg/m³
45
Columbus MS (8102)
16.9 km PM2.5: 10.9 µg/m³

What cities are near Simi Valley?

24 Moorpark 39 Thousand Oaks 42 Agoura 41 Agoura Hills 43 West Hills 40 Chatsworth 46 Calabasas 34 Canoga Park 42 Fillmore 42 Woodland Hills
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:04 UTC.