What is the air quality in Castlewood today?

The current Air Quality Index (AQI) in Castlewood is 35 (Good). PM2.5 concentration is 8.26 µg/m³.

What is the temperature in Castlewood right now?

The current temperature in Castlewood is 30.1°C (feels like 30.1°C). Humidity is 17.0% and wind speed is 63.4 km/h.

Is it safe to go outside in Castlewood?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.9 (Moderate).

Air Quality in Castlewood, United States

Rain

30.1°C · 17.0% humidity

30.1°

Feels 30.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

5 stations

Nearby Monitoring Stations

AQI Forecast

25 3pm

35 6pm

31 9pm

35 12am

25 3am

25 6am

25 9am

27 12pm

Air Quality Index Trend

46h · 6 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. Current PM2.5 concentration in Castlewood is 1.7× the WHO annual guideline of 5 µg/m³.

17.0%

Humidity

63.4 km/h

Wind NW

1009.7 hPa

Pressure

2.9

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.26 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Castlewood?

Temperature & Precipitation

PM2.5 Trend

46h · 6 stations

PM2.58.26 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX2.9

Moderate

Station readings (5 stations within 25 km)

8.26

Median

10.78

Average

2.9

Low

30.2

High

PM2.5 µg/m³ · Model: 6.25 · Bias: -2.0

What is the 7-day forecast for Castlewood?

05-29

30.1° 14.3°

12.06 mm

05-30

30.2° 15.8°

0.13 mm

05-31

29.2° 15.5°

1.5 mm

06-01

28.7° 16.6°

06-02

35.5° 20.5°

0.06 mm

06-03

34.7° 19.5°

06-04

33.2° 13.6°

7.0 mm

Both models agree Avg diff: 6.3°C

Where are air quality stations near Castlewood?

Runyon Elementary School

8.3 km PM2.5: 4.5 µg/m³

South Bannock Street

8.5 km PM2.5: 4.4 µg/m³

Arapahoe Community College

10.4 km PM2.5: 3.0 µg/m³ PM10: 9.0 µg/m³

Smoky Hill Library

10.6 km PM2.5: 6.3 µg/m³

Broken Tee Golf Course

11.6 km PM2.5: 4.8 µg/m³

Cushing Park

11.7 km PM2.5: 4.2 µg/m³

May Library

11.8 km PM2.5: 5.0 µg/m³

Sheridan Library

12.8 km PM2.5: 4.5 µg/m³

Sheridan Square Park

13.2 km PM2.5: 4.6 µg/m³

Northwest Greenbelt

13.4 km PM2.5: 4.4 µg/m³

What cities are near Castlewood?

37 Centennial 26 Southglenn 30 Greenwood Village 25 Highlands Ranch 13 Littleton 12 Parker 23 Columbine 27 Ken Caryl 36 Denver 35 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 2026-05-29T00:18 UTC.