Air Quality in Castlewood, United States

Drizzle
17.4°C · 58.6% humidity
17.4°
Feels 17.4°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
17 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
22 7pm
20
13
26 10pm
26
26
26 1am
38
38
51 4am
51
38
38 7am
38
38
51 10am
38
38
38 1pm
38
38
38 4pm
38
38
Station readings
22
20
CAMS model adj +1
25
25
12
25
25
25
25
37
37
50
50
37
37
37
37
50
37
37
37
37
37
37
37
37
AD 728×90

PM2.5 Trend (24h)

24h · 35 stations
58.6%
Humidity
60.5 km/h
Wind NNE
1005.6 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Castlewood?

Temperature & Precipitation

PM2.55.1 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (17 stations within 25 km)
5.1
Median
4.96
Average
2.5
Low
6.38
High
PM2.5 µg/m³ · Model: 4.4 · Bias: -0.7

What is the 7-day forecast for Castlewood?

04-09
19.5° 10.3°
0.62 mm
04-10
17.4° 10.8°
2.44 mm
04-11
20.0° 8.8°
13.56 mm
04-12
18.2° 10.4°
0.44 mm
04-13
16.9° 9.1°
0.06 mm
04-14
12.1° 4.3°
5.06 mm
04-15
12.4° 6.6°
0.13 mm
Both models agree Avg diff: 3.9°C

Where are air quality stations near Castlewood?

17
Runyon Elementary School
8.3 km PM2.5: 4.0 µg/m³
17
South Bannock Street
8.5 km PM2.5: 4.0 µg/m³
8
Arapahoe Community College
10.4 km PM2.5: 2.0 µg/m³ PM10: 7.0 µg/m³
17
Smoky Hill Library
10.6 km PM2.5: 4.1 µg/m³
21
Broken Tee Golf Course
11.6 km PM2.5: 5.0 µg/m³
17
Cushing Park
11.7 km PM2.5: 4.1 µg/m³
18
May Library
11.8 km PM2.5: 4.4 µg/m³
19
Sheridan Library
12.8 km PM2.5: 4.6 µg/m³
20
Sheridan Square Park
13.2 km PM2.5: 4.9 µg/m³
20
Northwest Greenbelt
13.4 km PM2.5: 4.7 µg/m³

What cities are near Castlewood?

20 Centennial 21 Southglenn 21 Greenwood Village 21 Highlands Ranch 21 Littleton 18 Parker 21 Columbine 22 Ken Caryl 21 Denver 22 Dakota Ridge

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T22:20 UTC.