What is the air quality in Lewiston today?

The current Air Quality Index (AQI) in Lewiston is 28 (Good). PM2.5 concentration is 6.63 µg/m³.

What is the temperature in Lewiston right now?

The current temperature in Lewiston is 17.1°C (feels like 17.1°C). Humidity is 37.9% and wind speed is 26.9 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

Clear

17.1°C · 37.9% humidity

17.1°

Feels 17.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

44h · 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.

37.9%

Humidity

26.9 km/h

Wind N

1012.3 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

6.63 µg/m³

PM10▲

104.9 µg/m³

050100150200300500

What is the weather forecast for Lewiston?

Temperature & Precipitation

PM2.5 Trend

44h · 1 station

PM2.56.63 µg/m³ ✓ WHO

Good

PM10104.9 µg/m³

Moderate

UV INDEX0.0

Low

Station readings (3 stations within 25 km)

6.63

Median

6.63

Average

6.0

Low

7.4

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +6.9

What is the 7-day forecast for Lewiston?

10-20

17.4° 8.7°

0.19 mm

10-21

18.6° 7.3°

0.44 mm

10-22

19.8° 3.1°

10-23

17.6° 6.4°

10-24

13.9° 1.9°

1.25 mm

10-25

13.5° 5.3°

10-26

13.5° 9.2°

Both models agree Avg diff: 4.4°C

Where are air quality stations near Lewiston?

Lewiston, Idaho, USA

2.1 km PM2.5: 6.2 µg/m³

Lewiston, Idaho, USA

2.1 km PM2.5: 12.0 µg/m³

Lewiston, Idaho, USA

2.1 km PM2.5: 21.1 µg/m³

13th St, Clarkston, Washington, USA

3.4 km PM2.5: 8.6 µg/m³

13th St, Clarkston, Washington, USA

3.4 km PM2.5: 7.7 µg/m³

13th St, Clarkston, Washington, USA

3.4 km PM2.5: 7.4 µg/m³

What cities are near Lewiston?

28 Lewiston Orchards 28 Moscow 28 Pullman 42 Walla Walla 28 Opportunity 24 Spokane Valley 24 Coeur d'Alene 23 Spokane 20 Post Falls 54 Pendleton

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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 2026-10-20T23:42 UTC.