Hourly Weather in Somerville, Massachusetts, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
14 mph
Breezy
17 mph
Breezy
18 mph
Breezy
21 mph
Strong
18 mph
Breezy
16 mph
Breezy
13 mph
Breezy
13 mph
Breezy
13 mph
Breezy
Humidity
90%
Extremely humid
89%
Extremely humid
89%
Extremely humid
90%
Extremely humid
90%
Extremely humid
90%
Extremely humid
92%
Extremely humid
92%
Extremely humid
92%
Extremely humid
Visibility
3 mi
Low
3 mi
Fair
3 mi
Fair
3 mi
Low
8 mi
Good
2 mi
Low
7 mi
Good
4 mi
Fair
8 mi
Good
Pressure
998 hPa
Extremely low
996 hPa
Extremely low
995 hPa
Extremely low
994 hPa
Extremely low
995 hPa
Extremely low
995 hPa
Extremely low
996 hPa
Extremely low
996 hPa
Extremely low
995 hPa
Extremely low
Clouds
100%
100%
100%
100%
100%
100%
100%
100%
100%
Dew point
44°
45°
45°
45°
45°
45°
46°
46°
47°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
34
Good
34
Good
34
Good
35
Good
35
Good
35
Good
35
Good
35
Good
35
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
0.10 μg/ft3
0.09 μg/ft3
0.08 μg/ft3
0.07 μg/ft3
0.06 μg/ft3
0.05 μg/ft3
0.06 μg/ft3
0.07 μg/ft3
0.08 μg/ft3
PM25
0.07 μg/ft3
0.07 μg/ft3
0.06 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.04 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.06 μg/ft3
NO2
1.49 ppb
1.62 ppb
1.75 ppb
1.88 ppb
1.72 ppb
1.55 ppb
1.38 ppb
1.37 ppb
1.37 ppb
SO2
0.14 ppb
0.14 ppb
0.13 ppb
0.12 ppb
0.12 ppb
0.12 ppb
0.12 ppb
0.14 ppb
0.16 ppb
CO
0.13 ppb
0.13 ppb
0.13 ppb
0.13 ppb
0.13 ppb
0.12 ppb
0.12 ppb
0.12 ppb
0.12 ppb
O3
37.6 ppb
37.5 ppb
37.3 ppb
37.2 ppb
37.8 ppb
38.3 ppb
38.9 ppb
38.4 ppb
37.9 ppb