What is the air quality in Smithtown today?

The current Air Quality Index (AQI) in Smithtown is 13 (Good). PM2.5 concentration is 3.1 µg/m³.

What is the temperature in Smithtown right now?

The current temperature in Smithtown is 11.8°C (feels like 11.8°C). Humidity is 51.9% and wind speed is 29.6 km/h.

Is it safe to go outside in Smithtown?

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

Air Quality in Smithtown, United States

Partly Cloudy

11.8°C · 51.9% humidity

11.8°

Feels 11.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 5 stn

View full history →

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

51.9%

Humidity

29.6 km/h

Wind ESE

1029.3 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

3.1 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Smithtown?

Temperature & Precipitation

PM2.5 Trend

45h · 5 stations

PM2.53.1 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

3.1

Median

3.1

Average

3.1

Low

3.1

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +2.9

What is the 7-day forecast for Smithtown?

10-21

19.2° 10.9°

10-22

17.6° 12.1°

7.69 mm

10-23

16.9° 9.7°

10-24

17.6° 12.1°

0.13 mm

10-25

17.0° 13.0°

51.0 mm

10-26

15.2° 8.9°

10-27

14.2° 9.9°

5.44 mm

Both models agree Avg diff: 3.4°C

Where are air quality stations near Smithtown?

Suffolk County, New York, USA

12.4 km PM2.5: 8.9 µg/m³

What cities are near Smithtown?

13 Hauppauge 13 Kings Park 13 Ronkonkoma 13 Lake Ronkonkoma 13 Central Islip 13 Commack 13 Centereach 13 East Northport 13 Holbrook 13 Setauket-East Setauket

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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 2026-10-21T00:42 UTC.