Air Quality in Simi Valley, United States

Drizzle
17.9°C · 56.4% humidity
17.9°
Feels 17.9°
47
Good
Air quality is satisfactory. Enjoy outdoor activities.
27 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
53 7pm
53
53
18 10pm
5
5
5 1am
5
5
5 4am
18
18
30 7am
30
30
30 10am
30
43
30 1pm
30
30
30 4pm
30
30
Station readings
53
53
53
CAMS model adj -7
50
50
37
25
12
12
12
12
12
12
25
25
37
37
37
37
37
50
37
37
37
37
37
37
AD 728×90

PM2.5 Trend (24h)

32h · 1 station
56.4%
Humidity
58.8 km/h
Wind WSW
1010.8 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Simi Valley?

Temperature & Precipitation

PM2.511.22 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (27 stations within 25 km)
11.22
Median
10.63
Average
3.45
Low
13.43
High
PM2.5 µg/m³ · Model: 8.9 · Bias: -2.3

What is the 7-day forecast for Simi Valley?

04-09
20.3° 13.5°
0.06 mm
04-10
17.9° 12.4°
7.06 mm
04-11
17.1° 10.2°
8.56 mm
04-12
13.7° 8.1°
0.19 mm
04-13
15.3° 7.1°
04-14
20.8° 8.9°
04-15
22.2° 13.7°
Both models agree Avg diff: 2.5°C

Where are air quality stations near Simi Valley?

33
Simi Valley - Cochran Street, Ventura, California
9.0 km
55
Thousand Oaks-Moorpark Road, Ventura, California
10.5 km
30
Thousand Oaks-Moorpark Road, Ventura, California
10.5 km
42
Justice St ES (4692)
14.7 km PM2.5: 10.2 µg/m³
45
Haynes ES (4473)
15.1 km PM2.5: 10.9 µg/m³
43
Welby ES (7637)
15.8 km PM2.5: 10.3 µg/m³
51
Chatsworth ES (3027)
16.1 km PM2.5: 12.2 µg/m³
50
Nevada ES (5459)
16.8 km PM2.5: 11.9 µg/m³
46
Columbus MS (8102)
16.9 km PM2.5: 11.0 µg/m³
14
Chatsworth Public Library - Inside
17.2 km PM2.5: 3.4 µg/m³

What cities are near Simi Valley?

47 Moorpark 47 Thousand Oaks 48 Agoura 48 Agoura Hills 53 West Hills 52 Chatsworth 54 Calabasas 54 Canoga Park 17 Fillmore 54 Woodland Hills

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T22:11 UTC.