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Nashua (New Hampshire) (US)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Cloudy
5°C
Cloudy
Humidity
72.1%
Wind
5 m/s
Pressure
1009 hPa
Direction
146°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-0° / 10°
Precip.
10.9mm
Max wind
5.1 m/s

Hourly Forecast

22.03
Now
Weather
5
22.03
17:00
Weather
0.4
22.03
18:00
Weather
10°
0.9
22.03
19:00
Weather
1.2
22.03
20:00
Weather
0.4
22.03
21:00
Weather
22.03
22:00
Weather
22.03
23:00
Weather
23.03
00:00
Weather
23.03
01:00
Weather
23.03
02:00
Weather
23.03
03:00
Weather
23.03
04:00
Weather
0.3
23.03
05:00
Weather
0.3
23.03
06:00
Weather
0.2
23.03
07:00
Weather
0.8
23.03
08:00
Weather
1
23.03
09:00
Weather
1.2
23.03
10:00
Weather
1.5
23.03
11:00
Weather
-0°
1.6
23.03
12:00
Weather
-0°
0.8
23.03
13:00
Weather
-0°
0.3
23.03
14:00
Weather
23.03
15:00
Weather

Temperature

10°C
-0°C
16:00
5°C
17:00
8°C
18:00
10°C
19:00
9°C
20:00
9°C
21:00
9°C
22:00
9°C
23:00
8°C
00:00
7°C
01:00
6°C
02:00
4°C
03:00
4°C
04:00
3°C
05:00
2°C
06:00
2°C
07:00
1°C
08:00
1°C
09:00
1°C
10:00
0°C
11:00
-0°C
12:00
-0°C
13:00
-0°C
14:00
0°C
15:00
0°C
16:00 03:00 15:00

Precipitation

1.6mm
0mm
17:00
0.4mm
18:00
0.9mm
19:00
1.2mm
20:00
0.4mm
04:00
0.3mm
05:00
0.3mm
06:00
0.2mm
07:00
0.8mm
08:00
1mm
09:00
1.2mm
10:00
1.5mm
11:00
1.6mm
12:00
0.8mm
13:00
0.3mm
16:00 03:00 15:00

Wind

5.1m/s
0m/s
16:00
5.1 m/s
17:00
4 m/s
18:00
4.2 m/s
19:00
4.3 m/s
20:00
3.5 m/s
21:00
3.3 m/s
22:00
3.1 m/s
23:00
2.6 m/s
00:00
2.6 m/s
01:00
3.7 m/s
02:00
4 m/s
03:00
3.7 m/s
04:00
3.6 m/s
05:00
3.7 m/s
06:00
3.4 m/s
07:00
4 m/s
08:00
3.8 m/s
09:00
3.6 m/s
10:00
3.6 m/s
11:00
3.9 m/s
12:00
4 m/s
13:00
3.9 m/s
14:00
4.6 m/s
15:00
4.6 m/s
16:00 03:00 15:00

Radiation

No sensor within 100 km.

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
85.9 km
28
9.3%

Measurement time: 2026-03-22 15:55

Calculated from PM2.5/PM10

O3
85.9 km
106.25 µg/m3
66.4%

Measurement time: 2026-03-22 15:55

source: OpenWeatherMap

PM2.5
85.9 km
6.8 µg/m3
8.1%

Measurement time: 2026-03-22 15:55

source: OpenWeatherMap

PM10
85.9 km
10.77 µg/m3
7.7%

Measurement time: 2026-03-22 15:55

source: OpenWeatherMap

CO
85.9 km
0.18786 mg/m3
1.3%

Measurement time: 2026-03-22 15:55

source: OpenWeatherMap

NO2
85.9 km
1.27 µg/m3
0.6%

Measurement time: 2026-03-22 15:55

source: OpenWeatherMap

SO2
85.9 km
0.59 µg/m3
0.2%

Measurement time: 2026-03-22 15:55

source: OpenWeatherMap

Info


Latitude: 42.76537
Longitude: -71.46757


Solar Energy

Moderate
358.6 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Nashua

About Air Quality in Nashua

Air quality in Nashua is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Nashua

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Nashua?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Nashua

If you're planning outdoor activities in Nashua, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.