What is the air quality in Lewiston today?

The current Air Quality Index (AQI) in Lewiston is 13 (Good). PM2.5 concentration is 3.2 µg/m³.

What is the temperature in Lewiston right now?

The current temperature in Lewiston is 16.1°C (feels like 16.1°C). Humidity is 73.3% and wind speed is 17.2 km/h.

Is it safe to go outside in Lewiston?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Lewiston, United States

Cloudy

16.1°C · 73.3% humidity

16.1°

Feels 16.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

54 6pm

13 9pm

22 12am

22 3am

23 6am

24 9am

24 12pm

24 3pm

Air Quality Index Trend

31h · 1 stn

View full history →

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.

73.3%

Humidity

17.2 km/h

Wind NNE

1016.1 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

3.2 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Lewiston?

Temperature & Precipitation

PM2.5 Trend

31h · 1 station

PM2.53.2 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (2 stations within 25 km)

3.2

Median

3.2

Average

2.6

Low

3.8

High

PM2.5 µg/m³ · Model: 10.0 · Bias: +6.8

What is the 7-day forecast for Lewiston?

07-22

21.3° 15.4°

0.69 mm

07-23

27.0° 18.2°

0.31 mm

07-24

25.4° 14.3°

3.13 mm

07-25

26.7° 17.8°

4.63 mm

07-26

21.8° 16.7°

0.81 mm

07-27

28.5° 16.3°

07-28

34.2° 18.6°

1.06 mm

Both models agree Avg diff: 2.7°C

Where are air quality stations near Lewiston?

Lewiston (ME DEP - LCKP)

1.2 km PM2.5: 10.0 µg/m³

Lewiston, Maine, USA

1.2 km PM2.5: 2.6 µg/m³

Lewiston, Maine, USA

1.2 km PM2.5: 2.6 µg/m³

Lewiston, Maine, USA

1.2 km PM2.5: 4.6 µg/m³

What cities are near Lewiston?

15 Westbrook 15 Portland 15 South Portland 20 South Portland Gardens 23 West Scarborough 27 Waterville 30 Saco 29 Biddeford 51 Laconia 26 Bangor

Get AQI alerts for Lewiston

Notify me when air quality reaches:

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

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-22T01:23 UTC.