Hourly Weather in Princeton, Pennsylvania, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
6 km/h
Calm
6 km/h
Calm
5 km/h
Calm
6 km/h
Calm
6 km/h
Calm
8 km/h
Calm
6 km/h
Calm
6 km/h
Calm
5 km/h
Calm
Humidity
86%
Extremely humid
89%
Extremely humid
91%
Extremely humid
90%
Extremely humid
89%
Extremely humid
91%
Extremely humid
92%
Extremely humid
92%
Extremely humid
95%
Extremely humid
Visibility
16 km
Good
14 km
Good
13 km
Good
13 km
Good
13 km
Good
13 km
Good
12 km
Good
12 km
Good
10 km
Good
Pressure
1011 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1011 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
Clouds
28%
8%
82%
2%
0%
18%
3%
16%
51%
Dew point
19°
19°
19°
18°
18°
18°
18°
17°
18°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
52
Moderate
52
Moderate
53
Moderate
53
Moderate
53
Moderate
53
Moderate
98
Moderate
96
Moderate
94
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
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
16.2 μg/m3
34.8 μg/m3
34.2 μg/m3
33.2 μg/m3
PM25
9.7 μg/m3
9.8 μg/m3
9.9 μg/m3
10 μg/m3
10.1 μg/m3
10.2 μg/m3
33.8 μg/m3
33.1 μg/m3
32 μg/m3
NO2
11.9 ppb
12.9 ppb
14 ppb
15.1 ppb
14.4 ppb
13.6 ppb
14.4 ppb
12.2 ppb
10 ppb
SO2
0.6 ppb
0.6 ppb
0.6 ppb
0.6 ppb
0.6 ppb
0.6 ppb
0.7 ppb
0.6 ppb
0.5 ppb
CO
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
O3
38.7 ppb
40.5 ppb
42.6 ppb
44.8 ppb
46.9 ppb
48.7 ppb
16.9 ppb
17.9 ppb
19.5 ppb