Hourly Weather in Petersham, Massachusetts, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
12 km/h
Light
10 km/h
Light
11 km/h
Light
10 km/h
Light
6 km/h
Calm
7 km/h
Calm
7 km/h
Calm
7 km/h
Calm
7 km/h
Calm
Humidity
51%
Comfortable
53%
Comfortable
54%
Comfortable
56%
Comfortable
58%
Comfortable
60%
Humid
59%
Comfortable
58%
Comfortable
59%
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
1018 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1016 hPa
Normal
1015 hPa
Normal
1015 hPa
Normal
Clouds
61%
17%
0%
0%
0%
0%
0%
6%
20%
Dew point
13°
12°
11°
10°
10°
10°
9°
8°
8°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
38
Good
38
Good
39
Good
40
Good
41
Good
42
Good
43
Good
44
Good
49
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
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
9.7 μg/m3
9.6 μg/m3
PM25
5.5 μg/m3
5.7 μg/m3
5.9 μg/m3
6.3 μg/m3
6.6 μg/m3
7.1 μg/m3
7.5 μg/m3
7.8 μg/m3
8.7 μg/m3
NO2
1.8 ppb
2.3 ppb
3.4 ppb
4.4 ppb
5.4 ppb
7.1 ppb
8.7 ppb
10.4 ppb
13.8 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
0.1 ppb
0.1 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
41 ppb
41.3 ppb
41.9 ppb
42.8 ppb
43.8 ppb
44.8 ppb
45.8 ppb
46.7 ppb
20.1 ppb