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  3. New Hampshire
  4. Merrimack County
  5. Allenstown

Allenstown

Merrimack County, New Hampshire

2026-05-20 15:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
85.5
PM10
μg/m³
19
PM2.5
μg/m³
9.2
CO
μg/m³
220.8
NO2
μg/m³
2.3
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
29℃
57%
20 kph
5 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • NO2
  • SO2

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