Keene, New Hampshire, USA Air Quality

Monitoring Station · Keene, United States
59
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
34 4am
69
59
46 7am
46
46
46 10am
46
44
44 1pm
44
44
44 4pm
44
44
— 7pm
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—
— 10pm
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— 1am
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Station readings
34
69
59
CAMS model adj +19
25
27
27
27
27
27
27
27
25
25
25
25
25
25
25

Air Quality Forecast (24h)

PM2.515.9 µg/m³ ×1.1 WHO
Moderate
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Nearby Monitoring Stations

18
Keene, New Hampshire, USA
0.0 km PM2.5: 4.3 µg/m³
25
Keene, New Hampshire, USA
0.0 km PM2.5: 6.0 µg/m³

Nearby Cities

19 Keene 23 Gardner 16 Greenfield 22 Fitchburg 34 Leominster 26 Merrimack 20 Amherst Center 20 Amherst 26 Nashua

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T07:43 UTC.