Air Quality in Castlewood, United States

Windy
37.0°C · 12.4% humidity
37.0°
Feels 37.0°
59
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
18 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
14 12pm
14
14
59 3pm
46
37
31 6pm
26
22
20 9pm
20
19
18 12am
25
24
17 3am
17
16
16 6am
16
16
16 9am
14
14
Station readings
20
6
6
CAMS model adj -11
25
25
25
25
25
25
25
25
25
25
27
27
27
34
34
27
27
27
27
27
27
27
25
25
AD 728×90

Air Quality Index Trend

16h · 1 stn

Castlewood's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Castlewood is 1.1× the WHO 24-hour guideline of 15 µg/m³.

12.4%
Humidity
83.5 km/h
Wind E
1004.2 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
59
15.83 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Castlewood?

Temperature & Precipitation

PM2.5 Trend

16h · 1 station
PM2.515.83 µg/m³ ×1.1 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (18 stations within 25 km)
15.83
Median
15.07
Average
2.58
Low
18.26
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -9.6

What is the 7-day forecast for Castlewood?

07-21
35.1° 22.9°
07-22
37.0° 21.5°
07-23
25.0° 18.4°
1.13 mm
07-24
35.8° 22.9°
0.06 mm
07-25
35.4° 21.5°
3.31 mm
07-26
32.4° 22.3°
6.31 mm
07-27
36.7° 21.5°
Both models agree Avg diff: 4.0°C

Where are air quality stations near Castlewood?

62
Runyon Elementary School
8.3 km PM2.5: 17.5 µg/m³
61
South Bannock Street
8.5 km PM2.5: 16.9 µg/m³
42
Arapahoe Community College
10.4 km PM2.5: 10.0 µg/m³ PM10: 36.0 µg/m³
60
Smoky Hill Library
10.6 km PM2.5: 16.5 µg/m³
62
Broken Tee Golf Course
11.6 km PM2.5: 17.2 µg/m³
59
Cushing Park
11.7 km PM2.5: 15.9 µg/m³
63
May Library
11.8 km PM2.5: 17.8 µg/m³
59
Sheridan Library
12.8 km PM2.5: 16.1 µg/m³
61
Sheridan Square Park
13.2 km PM2.5: 16.9 µg/m³
64
Northwest Greenbelt
13.4 km PM2.5: 18.3 µg/m³

What cities are near Castlewood?

59 Centennial 59 Southglenn 59 Greenwood Village 59 Highlands Ranch 52 Littleton 59 Parker 56 Columbine 57 Ken Caryl 54 Denver 56 Dakota Ridge
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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 2026-07-21T21:28 UTC.