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  3. New Hampshire
  4. Merrimack County
  5. Allenstown

Allenstown

Merrimack County, New Hampshire

2026-09-08 02:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
4.8
O3
μg/m³
61.1
PM10
μg/m³
9.1
CO
μg/m³
205.2
NO2
μg/m³
2.3
SO2
μg/m³
2
Weather
  • ℃
  • ℉
15℃
79%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
  • CO
  • NO2
  • SO2

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