Hourly Weather in Salem, New Hampshire, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
4 mph
Calm
4 mph
Calm
4 mph
Calm
4 mph
Calm
4 mph
Calm
5 mph
Light
9 mph
Light
10 mph
Breezy
8 mph
Light
Humidity
90%
Extremely humid
90%
Extremely humid
90%
Extremely humid
90%
Extremely humid
90%
Extremely humid
88%
Extremely humid
82%
Extremely humid
82%
Extremely humid
82%
Extremely humid
Visibility
8 mi
Good
8 mi
Good
8 mi
Good
8 mi
Good
8 mi
Good
8 mi
Good
9 mi
Good
8 mi
Good
7 mi
Good
Pressure
1011 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1009 hPa
Low
1008 hPa
Low
1009 hPa
Normal
1009 hPa
Normal
1009 hPa
Normal
1010 hPa
Normal
Clouds
100%
100%
91%
100%
100%
61%
100%
100%
100%
Dew point
52°
53°
53°
53°
54°
55°
58°
58°
56°
UV Index
0
0
0
0
0
0
2
3
2
Air quality
52
Moderate
42
Good
35
Good
31
Good
31
Good
32
Good
36
Good
39
Good
39
Good
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
0.28 μg/ft3
0.22 μg/ft3
0.18 μg/ft3
0.16 μg/ft3
0.16 μg/ft3
0.17 μg/ft3
0.18 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
PM25
0.27 μg/ft3
0.21 μg/ft3
0.18 μg/ft3
0.16 μg/ft3
0.15 μg/ft3
0.16 μg/ft3
0.18 μg/ft3
0.20 μg/ft3
0.20 μg/ft3
NO2
4.4 ppb
3.7 ppb
3 ppb
3.4 ppb
3.9 ppb
4.4 ppb
4.5 ppb
4.7 ppb
4.8 ppb
SO2
0.7 ppb
0.8 ppb
0.9 ppb
1.1 ppb
1.3 ppb
1.5 ppb
1.7 ppb
1.9 ppb
2.1 ppb
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
27.2 ppb
29.2 ppb
30.9 ppb
32 ppb
33.1 ppb
34 ppb
35.1 ppb
36.3 ppb
37.1 ppb