Air Quality in Merrimack, United States
Cloudy
12.5°C · 76.1% humidity
12.5°
Feels 12.5°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
AQI Forecast
54
1am
54
54
26
4am
34
40
17
7am
18
20
21
10am
22
23
24
1pm
24
24
24
4pm
25
25
27
7pm
27
34
34
10pm
34
34
Air Quality Index Trend
45h · 3 stnMerrimack's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
76.1%
Humidity
8.1 km/h
Wind SW
999.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.2 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Merrimack?
Temperature & Precipitation
PM2.5 Trend
45h · 3 stationsPM2.56.2 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
6.2
Median
6.2
Average
6.2
Low
6.2
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +3.5
What is the 7-day forecast for Merrimack?
06-09
32.8° 12.5°
06-10
19.6° 11.1°
12.38 mm
06-11
25.3° 9.3°
06-12
19.9° 14.1°
3.31 mm
06-13
29.4° 15.2°
2.0 mm
06-14
25.4° 8.7°
17.87 mm
06-15
26.6° 13.3°
2.12 mm
Both models agree
Avg diff: 7.4°C
Where are air quality stations near Merrimack?
What cities are near Merrimack?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T08:04 UTC.