Hourly Weather in Post Island, Massachusetts, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
13 km/h
Light
9 km/h
Light
7 km/h
Calm
7 km/h
Calm
6 km/h
Calm
5 km/h
Calm
6 km/h
Calm
6 km/h
Calm
7 km/h
Calm
Humidity
39%
Dry
50%
Comfortable
61%
Humid
77%
Extremely humid
83%
Extremely humid
86%
Extremely humid
89%
Extremely humid
87%
Extremely humid
86%
Extremely humid
Visibility
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
15 km
Good
14 km
Good
14 km
Good
14 km
Good
Pressure
1018 hPa
Normal
1018 hPa
Normal
1017 hPa
Normal
1018 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1015 hPa
Normal
Clouds
0%
0%
0%
0%
2%
5%
4%
5%
22%
Dew point
8°
10°
11°
14°
14°
14°
14°
14°
14°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
36
Good
36
Good
35
Good
35
Good
34
Good
52
Moderate
55
Moderate
58
Moderate
59
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
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
12.9 μg/m3
10.9 μg/m3
13 μg/m3
14.6 μg/m3
15.7 μg/m3
PM25
4.5 μg/m3
4.8 μg/m3
5 μg/m3
5.3 μg/m3
5.5 μg/m3
9.4 μg/m3
11.1 μg/m3
12.5 μg/m3
13.4 μg/m3
NO2
2.4 ppb
3.1 ppb
4.5 ppb
5.8 ppb
7.1 ppb
11.3 ppb
12.9 ppb
14.4 ppb
14.8 ppb
SO2
0.1 ppb
0.1 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.3 ppb
0.4 ppb
0.4 ppb
0.4 ppb
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
39 ppb
38.4 ppb
37.9 ppb
37.4 ppb
36.9 ppb
27.1 ppb
23.9 ppb
20.9 ppb
18.7 ppb