Hourly Weather in Somerville, Massachusetts, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
5 km/h
Calm
4 km/h
Calm
4 km/h
Calm
5 km/h
Calm
5 km/h
Calm
5 km/h
Calm
7 km/h
Calm
4 km/h
Calm
4 km/h
Calm
Humidity
70%
Extremely humid
79%
Extremely humid
82%
Extremely humid
78%
Extremely humid
75%
Extremely humid
79%
Extremely humid
86%
Extremely humid
87%
Extremely humid
87%
Extremely humid
Visibility
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
15 km
Good
15 km
Good
Pressure
1011 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
Clouds
0%
3%
3%
2%
1%
4%
6%
4%
5%
Dew point
13°
14°
14°
12°
11°
11°
12°
12°
11°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
29
Good
30
Good
30
Good
31
Good
32
Good
32
Good
33
Good
62
Moderate
62
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
7.5 μg/m3
7.5 μg/m3
7.5 μg/m3
7.5 μg/m3
7.5 μg/m3
7.5 μg/m3
7.5 μg/m3
16.8 μg/m3
16.5 μg/m3
PM25
4.8 μg/m3
4.8 μg/m3
4.8 μg/m3
4.9 μg/m3
4.9 μg/m3
4.9 μg/m3
4.9 μg/m3
15.1 μg/m3
15 μg/m3
NO2
5.7 ppb
7.3 ppb
9.1 ppb
10.6 ppb
12.1 ppb
13.6 ppb
13.9 ppb
16.6 ppb
16.9 ppb
SO2
0.3 ppb
0.3 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
CO
0.1 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
31.5 ppb
31.9 ppb
32.5 ppb
33.2 ppb
34 ppb
34.7 ppb
35.3 ppb
11.5 ppb
10.1 ppb