Hourly Weather in South Portland, Maine, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
15 km/h
Light
15 km/h
Light
15 km/h
Light
15 km/h
Light
14 km/h
Light
14 km/h
Light
9 km/h
Light
9 km/h
Light
6 km/h
Calm
Humidity
66%
Humid
59%
Comfortable
55%
Comfortable
66%
Humid
69%
Humid
69%
Humid
71%
Extremely humid
81%
Extremely humid
82%
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
1022 hPa
High
1022 hPa
High
1022 hPa
High
1022 hPa
High
1022 hPa
High
1023 hPa
High
1023 hPa
High
1023 hPa
High
Clouds
9%
0%
0%
0%
0%
0%
0%
1%
0%
Dew point
13°
13°
11°
12°
13°
12°
12°
13°
13°
UV Index
2
1
0
0
0
0
0
0
0
Air quality
48
Good
51
Moderate
52
Moderate
53
Moderate
54
Moderate
55
Moderate
58
Moderate
57
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
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
20.5 μg/m3
16.2 μg/m3
15.3 μg/m3
14.2 μg/m3
PM25
8.6 μg/m3
9.1 μg/m3
9.7 μg/m3
10.3 μg/m3
10.8 μg/m3
11.3 μg/m3
12.7 μg/m3
12.1 μg/m3
11.4 μg/m3
NO2
1.1 ppb
1.3 ppb
1.4 ppb
1.7 ppb
1.7 ppb
1.7 ppb
2.1 ppb
2.4 ppb
2.8 ppb
SO2
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.1 ppb
0.1 ppb
0.2 ppb
0.2 ppb
CO
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
O3
34.1 ppb
34.6 ppb
35.3 ppb
36 ppb
36.6 ppb
37.2 ppb
46.3 ppb
42.4 ppb
39.3 ppb