Hourly Weather in Merrimack, New Hampshire, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
8 km/h
Light
8 km/h
Light
11 km/h
Light
14 km/h
Light
13 km/h
Light
14 km/h
Light
13 km/h
Light
12 km/h
Light
9 km/h
Light
Humidity
45%
Comfortable
37%
Dry
41%
Dry
37%
Dry
37%
Dry
36%
Dry
36%
Dry
42%
Dry
57%
Comfortable
Visibility
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1019 hPa
High
1018 hPa
High
1017 hPa
Normal
1017 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
Clouds
7%
5%
30%
18%
6%
3%
0%
0%
0%
Dew point
15°
11°
13°
11°
11°
10°
9°
10°
12°
UV Index
7
6
5
3
2
1
0
0
0
Air quality
44
Good
44
Good
44
Good
44
Good
41
Good
44
Good
46
Good
54
Moderate
51
Moderate
Pollen index
Tree
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
9.7 μg/m3
8.6 μg/m3
7.9 μg/m3
PM25
5.5 μg/m3
5.7 μg/m3
6 μg/m3
6.5 μg/m3
7.3 μg/m3
7.8 μg/m3
8.2 μg/m3
8.2 μg/m3
7.5 μg/m3
NO2
0.6 ppb
0.6 ppb
0.6 ppb
0.7 ppb
0.8 ppb
1.1 ppb
1.5 ppb
2 ppb
3.1 ppb
SO2
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
CO
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
O3
47.5 ppb
47.5 ppb
47.7 ppb
47.9 ppb
42.9 ppb
44.5 ppb
45.9 ppb
59.7 ppb
55.2 ppb