What is the air quality in Lewiston today?

The current Air Quality Index (AQI) in Lewiston is 13 (Good). PM2.5 concentration is 3.25 µg/m³.

What is the temperature in Lewiston right now?

The current temperature in Lewiston is 2.1°C (feels like -2.3°C). Humidity is 83.4% and wind speed is 18.4 km/h.

Is it safe to go outside in Lewiston?

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

Air Quality in Lewiston, United States

Cloudy

2.1°C · 83.4% humidity

2.1°

Feels -2.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

44h · 1 stn

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Lewiston's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

83.4%

Humidity

18.4 km/h

Wind SSW

1030.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

3.25 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Lewiston?

Temperature & Precipitation

PM2.5 Trend

44h · 1 station

PM2.53.25 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Lewiston?

10-21

16.1° 2.1°

0.06 mm

10-22

14.1° 2.4°

4.31 mm

10-23

12.8° 2.9°

0.62 mm

10-24

10.2° 6.6°

10-25

18.7° 4.4°

22.31 mm

10-26

8.3° 1.0°

7.69 mm

10-27

8.7° 3.1°

0.5 mm

Both models agree Avg diff: 3.9°C

Where are air quality stations near Lewiston?

Lewiston (ME DEP - LCKP)

1.2 km PM2.5: 10.0 µg/m³

What cities are near Lewiston?

27 Westbrook 25 Portland 25 South Portland 27 South Portland Gardens 27 West Scarborough 1 Waterville 29 Saco 27 Biddeford 28 Laconia 13 Bangor

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-10-21T01:23 UTC.