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  4. Merrimack County
  5. Allenstown

Allenstown

Merrimack County, New Hampshire

2026-05-17 18:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
119
PM10
μg/m³
23.8
PM2.5
μg/m³
7.4
CO
μg/m³
249.9
NO2
μg/m³
1.1
SO2
μg/m³
1.3
Weather
  • ℃
  • ℉
27℃
41%
19 kph
8 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • NO2
  • SO2

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