What is the air quality in Derry today?

The current Air Quality Index (AQI) in Derry is 44 (Good). PM2.5 concentration is 10.55 µg/m³.

What is the temperature in Derry right now?

The current temperature in Derry is 20.4°C (feels like 20.4°C). Humidity is 68.9% and wind speed is 52.7 km/h.

Is it safe to go outside in Derry?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 7.9 (Very High).

Air Quality in Derry, United States

Windy

20.4°C · 68.9% humidity

20.4°

Feels 20.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

34 1pm

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Air Quality Index Trend

48h · 2 stn

View full history →

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

68.9%

Humidity

52.7 km/h

Wind ENE

1015.5 hPa

Pressure

7.9

UV Very High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

10.55 µg/m³

PM10

34.3 µg/m³

050100150200300500

What is the weather forecast for Derry?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations

PM2.510.55 µg/m³ ✓ WHO

Good

PM1034.3 µg/m³

Good

UV INDEX7.9

Very High

Station readings (2 stations within 25 km)

10.55

Median

9.98

Average

9.36

Low

10.6

High

PM2.5 µg/m³ · Model: 13.7 · Bias: +3.2

What is the 7-day forecast for Derry?

07-21

24.2° 19.5°

5.25 mm

07-22

22.1° 13.9°

17.25 mm

07-23

25.8° 16.4°

1.19 mm

07-24

29.4° 14.4°

3.06 mm

07-25

33.0° 18.6°

4.75 mm

07-26

22.5° 15.7°

2.69 mm

07-27

28.9° 15.5°

1.19 mm

Both models agree Avg diff: 3.5°C

Where are air quality stations near Derry?

Londonderry - Moose Hill, New Hampshire, USA

4.8 km PM2.5: 6.0 µg/m³

Londonderry - Moose Hill, New Hampshire, USA

4.8 km PM2.5: 8.6 µg/m³

Park/Lawrence

22.5 km PM2.5: 9.2 µg/m³

What cities are near Derry?

44 Derry Village 44 Merrimack 44 Nashua 39 Methuen 39 Haverhill 40 Dracut 39 North Andover 39 Lowell 39 Tewksbury 39 Chelmsford

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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 2026-07-21T20:44 UTC.