What is the air quality in Castlewood today?

The current Air Quality Index (AQI) in Castlewood is 35 (Good). PM2.5 concentration is 8.52 µg/m³.

What is the temperature in Castlewood right now?

The current temperature in Castlewood is 22.2°C (feels like 22.2°C). Humidity is 14.4% and wind speed is 25.4 km/h.

Is it safe to go outside in Castlewood?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Castlewood, United States

Clear

22.2°C · 14.4% humidity

22.2°

Feels 22.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

22 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings 19h ago

AQI 1

PM2.5 0.3 µg/m³ · 19h ago

Air Quality Index Trend

9h · 1 stn

View full history →

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.

14.4%

Humidity

25.4 km/h

Wind NNE

1011.3 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.52 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Castlewood?

Temperature & Precipitation

PM2.5 Trend

9h · 1 station

PM2.58.52 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (22 stations within 25 km)

8.52

Median

7.82

Average

3.4

Low

10.59

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +5.0

What is the 7-day forecast for Castlewood?

10-20

25.0° 12.1°

10-21

22.8° 9.5°

10-22

16.3° 9.8°

10-23

15.4° 2.3°

7.69 mm

10-24

22.6° 14.8°

10-25

17.9° 11.2°

0.31 mm

10-26

21.4° 11.3°

Both models agree Avg diff: 5.1°C

Where are air quality stations near Castlewood?

Runyon Elementary School

8.3 km PM2.5: 9.6 µg/m³

South Bannock Street

8.5 km PM2.5: 9.5 µg/m³

Arapahoe Community College

10.4 km PM2.5: 9.0 µg/m³ PM10: 30.0 µg/m³

Smoky Hill Library

10.6 km PM2.5: 9.5 µg/m³

Broken Tee Golf Course

11.6 km PM2.5: 9.6 µg/m³

Cushing Park

11.7 km PM2.5: 5.5 µg/m³

May Library

11.8 km PM2.5: 8.2 µg/m³

Sheridan Library

12.8 km PM2.5: 9.2 µg/m³

Sheridan Square Park

13.2 km PM2.5: 10.1 µg/m³

Northwest Greenbelt

13.4 km PM2.5: 9.1 µg/m³

What cities are near Castlewood?

35 Centennial 37 Southglenn 36 Greenwood Village 37 Highlands Ranch 38 Littleton 39 Parker 37 Columbine 35 Ken Caryl 27 Denver 33 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 2026-10-20T22:42 UTC.