Hourly Weather in Needham, Massachusetts, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
6 km/h
Calm
8 km/h
Calm
7 km/h
Calm
6 km/h
Calm
5 km/h
Calm
6 km/h
Calm
1 km/h
Calm
14 km/h
Light
13 km/h
Light
Humidity
30%
Dry
30%
Dry
31%
Dry
34%
Dry
33%
Dry
33%
Dry
33%
Dry
37%
Dry
51%
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
1022 hPa
High
1022 hPa
High
1022 hPa
High
1021 hPa
High
1021 hPa
High
1021 hPa
High
1022 hPa
High
1022 hPa
High
1022 hPa
High
Clouds
2%
2%
34%
12%
11%
4%
5%
2%
0%
Dew point
8°
8°
9°
10°
10°
10°
9°
9°
12°
UV Index
7
6
5
3
2
1
0
0
0
Air quality
34
Good
35
Good
38
Good
40
Good
45
Good
47
Good
59
Moderate
58
Moderate
56
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
14.4 μg/m3
13.4 μg/m3
12.7 μg/m3
PM25
6 μg/m3
6.3 μg/m3
6.7 μg/m3
7.1 μg/m3
8 μg/m3
8.4 μg/m3
13.5 μg/m3
12.6 μg/m3
11.9 μg/m3
NO2
1.7 ppb
1.3 ppb
1.4 ppb
1.4 ppb
1.5 ppb
2.3 ppb
3.1 ppb
3.8 ppb
4.5 ppb
SO2
0.3 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
0.2 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
34 ppb
35 ppb
36.5 ppb
38.2 ppb
39.2 ppb
41.4 ppb
62.9 ppb
58.7 ppb
57.1 ppb