Daily Weather in Watertown, Massachusetts, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
17 km/h
Breezy
16 km/h
Light
21 km/h
Breezy
28 km/h
Breezy
9 km/h
Light
14 km/h
Light
10 km/h
Light
11 km/h
Light
12 km/h
Light
Humidity
87%
Extremely humid
95%
Extremely humid
97%
Extremely humid
100%
Extremely humid
99%
Extremely humid
96%
Extremely humid
95%
Extremely humid
97%
Extremely humid
97%
Extremely humid
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
1015 hPa
Normal
1012 hPa
Normal
1010 hPa
Normal
1003 hPa
Very low
1007 hPa
Low
1011 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1014 hPa
Normal
Clouds
27%
100%
100%
100%
100%
80%
100%
100%
100%
Dew point
13°
18°
20°
21°
20°
20°
19°
21°
21°
UV Index
8
7
6
4
2
1
Air quality
62
Moderate
64
Moderate
64
Moderate
56
Moderate
42
Good
Pollen index
Tree
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
Grass
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
16.5 μg/m3
17.1 μg/m3
18.9 μg/m3
12.9 μg/m3
7.6 μg/m3
4.6 μg/m3
PM25
15 μg/m3
16 μg/m3
16.1 μg/m3
11.9 μg/m3
7.5 μg/m3
4.5 μg/m3
NO2
16.9 ppb
14.1 ppb
4.4 ppb
11.1 ppb
13.9 ppb
5.8 ppb
SO2
0.4 ppb
0.5 ppb
0.5 ppb
0.5 ppb
0.3 ppb
0.4 ppb
CO
0.2 ppb
0.2 ppb
0.2 ppb
0.3 ppb
0.3 ppb
0.2 ppb
O3
36.7 ppb
61.1 ppb
70.6 ppb
59.6 ppb
41.4 ppb
32.6 ppb