Hourly Weather in Alton, Maine, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
6 km/h
Calm
5 km/h
Calm
5 km/h
Calm
6 km/h
Calm
6 km/h
Calm
6 km/h
Calm
4 km/h
Calm
4 km/h
Calm
1 km/h
Calm
Humidity
69%
Humid
68%
Humid
69%
Humid
76%
Extremely humid
82%
Extremely humid
86%
Extremely humid
81%
Extremely humid
83%
Extremely humid
80%
Extremely humid
Visibility
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
15 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1011 hPa
Normal
1012 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
Clouds
50%
19%
38%
3%
3%
61%
95%
45%
0%
Dew point
12°
11°
11°
11°
11°
11°
11°
11°
12°
UV Index
0
0
0
0
0
0
0
0
1
Air quality
31
Good
31
Good
35
Good
39
Good
42
Good
45
Good
51
Moderate
51
Moderate
44
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
8.6 μg/m3
8.6 μg/m3
8.6 μg/m3
8.6 μg/m3
8.6 μg/m3
8.6 μg/m3
9.5 μg/m3
9.4 μg/m3
8.2 μg/m3
PM25
5.1 μg/m3
5.6 μg/m3
6.2 μg/m3
6.9 μg/m3
7.5 μg/m3
8 μg/m3
9.2 μg/m3
9.1 μg/m3
7.9 μg/m3
NO2
1.4 ppb
1.8 ppb
2.2 ppb
2.7 ppb
3 ppb
3.3 ppb
4.6 ppb
3.6 ppb
2.5 ppb
SO2
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
O3
33.6 ppb
33.8 ppb
34 ppb
34.2 ppb
34.4 ppb
34.6 ppb
22.2 ppb
23.2 ppb
25.4 ppb