Hourly Weather in Watertown, Massachusetts, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
14 km/h
Light
13 km/h
Light
12 km/h
Light
14 km/h
Light
11 km/h
Light
9 km/h
Light
9 km/h
Light
9 km/h
Light
8 km/h
Light
Humidity
40%
Dry
43%
Dry
43%
Dry
42%
Dry
51%
Comfortable
62%
Humid
64%
Humid
65%
Humid
70%
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
1021 hPa
High
1020 hPa
High
1021 hPa
High
1022 hPa
High
1022 hPa
High
1023 hPa
High
1023 hPa
High
1022 hPa
High
1022 hPa
High
Clouds
27%
47%
43%
19%
0%
0%
0%
0%
0%
Dew point
11°
12°
12°
10°
11°
13°
13°
12°
13°
UV Index
1
0
0
0
0
0
0
0
0
Air quality
38
Good
39
Good
39
Good
40
Good
42
Good
45
Good
48
Good
55
Moderate
55
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
12.9 μg/m3
12.9 μg/m3
11.9 μg/m3
12 μg/m3
PM25
5.5 μg/m3
5.9 μg/m3
6.4 μg/m3
6.9 μg/m3
7.5 μg/m3
8.1 μg/m3
8.6 μg/m3
11 μg/m3
11 μg/m3
NO2
2.3 ppb
3 ppb
3.7 ppb
4.4 ppb
5.1 ppb
5.8 ppb
6.5 ppb
7.4 ppb
8.1 ppb
SO2
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
CO
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
O3
41.2 ppb
41.7 ppb
42.3 ppb
43 ppb
43.8 ppb
44.5 ppb
45.2 ppb
37.3 ppb
34.2 ppb