Hourly Weather in Salem, Pennsylvania, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
5 km/h
Calm
4 km/h
Calm
3 km/h
Calm
3 km/h
Calm
7 km/h
Calm
6 km/h
Calm
8 km/h
Calm
4 km/h
Calm
16 km/h
Light
Humidity
73%
Extremely humid
63%
Humid
55%
Comfortable
48%
Comfortable
42%
Dry
37%
Dry
36%
Dry
38%
Dry
41%
Dry
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
1013 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
Clouds
12%
14%
19%
22%
30%
20%
100%
100%
97%
Dew point
19°
18°
17°
15°
14°
13°
13°
13°
14°
UV Index
3
4
6
6
6
5
2
1
1
Air quality
43
Good
47
Good
51
Moderate
53
Moderate
54
Moderate
56
Moderate
72
Moderate
71
Moderate
72
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
8.6 μg/m3
8.6 μg/m3
8.6 μg/m3
8.6 μg/m3
8.6 μg/m3
8.6 μg/m3
21.2 μg/m3
20.7 μg/m3
21 μg/m3
PM25
7.7 μg/m3
8.4 μg/m3
9.2 μg/m3
10.1 μg/m3
10.9 μg/m3
11.6 μg/m3
20.2 μg/m3
19.8 μg/m3
20 μg/m3
NO2
1.5 ppb
0.7 ppb
0.6 ppb
0.5 ppb
0.4 ppb
0.5 ppb
0.5 ppb
0.5 ppb
1 ppb
SO2
0.5 ppb
0.7 ppb
0.7 ppb
0.7 ppb
0.7 ppb
0.7 ppb
0.6 ppb
0.6 ppb
0.6 ppb
CO
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
O3
29.6 ppb
33 ppb
36.9 ppb
41 ppb
44.9 ppb
48.3 ppb
63.5 ppb
63.3 ppb
61.1 ppb