What is the air quality in Littleton today?

The current Air Quality Index (AQI) in Littleton is 21 (Good). PM2.5 concentration is 5.03 µg/m³.

What is the temperature in Littleton right now?

The current temperature in Littleton 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 Littleton?

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

Air Quality in Littleton, United States

Clear

22.2°C · 14.4% humidity

22.2°

Feels 22.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

31 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

9h · 1 stn

View full history →

Littleton'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

5.03 µg/m³

PM10▲

27.4 µg/m³

050100150200300500

What is the weather forecast for Littleton?

Temperature & Precipitation

PM2.5 Trend

9h · 1 station

PM2.55.03 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (31 stations within 25 km)

5.03

Median

5.87

Average

3.14

Low

8.14

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +8.5

What is the 7-day forecast for Littleton?

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°

10-27

17.2° 5.7°

Both models agree Avg diff: 5.2°C

Where are air quality stations near Littleton?

Arapahoe Community College

1.0 km PM2.5: 4.0 µg/m³ PM10: 16.0 µg/m³

South Bannock Street

2.3 km PM2.5: 6.2 µg/m³

Broken Tee Golf Course

3.3 km PM2.5: 6.2 µg/m³

Runyon Elementary School

3.4 km PM2.5: 6.3 µg/m³

Sheridan Library

3.5 km PM2.5: 6.0 µg/m³

Sheridan Square Park

4.1 km PM2.5: 6.4 µg/m³

Cushing Park

5.5 km PM2.5: 4.4 µg/m³

Northwest Greenbelt

6.3 km PM2.5: 6.3 µg/m³

Chatfield Park, Colorado, USA

9.9 km PM2.5: 5.0 µg/m³

Dunston Middle School

13.0 km PM2.5: 4.3 µg/m³

What cities are near Littleton?

24 Columbine 26 Greenwood Village 26 Southglenn 25 Highlands Ranch 24 Ken Caryl 25 Castlewood 24 Dakota Ridge 25 Centennial 22 Denver 26 Wheat 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 2026-10-21T01:06 UTC.