Hourly Weather in Waltham, Maine, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
10 mph
Breezy
11 mph
Breezy
12 mph
Breezy
12 mph
Breezy
13 mph
Breezy
13 mph
Breezy
13 mph
Breezy
13 mph
Breezy
13 mph
Breezy
Humidity
60%
Comfortable
59%
Comfortable
60%
Humid
60%
Humid
59%
Comfortable
59%
Comfortable
58%
Comfortable
57%
Comfortable
56%
Comfortable
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
Pressure
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
1013 hPa
Normal
1014 hPa
Normal
1014 hPa
Normal
1016 hPa
Normal
Clouds
100%
100%
100%
100%
100%
100%
100%
100%
100%
Dew point
10°
11°
11°
11°
10°
10°
8°
6°
4°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
33
Good
34
Good
34
Good
34
Good
34
Good
34
Good
33
Good
33
Good
34
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
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.05 μg/ft3
0.06 μg/ft3
0.07 μg/ft3
0.07 μg/ft3
PM25
0.14 μg/ft3
0.13 μg/ft3
0.13 μg/ft3
0.14 μg/ft3
0.15 μg/ft3
0.19 μg/ft3
0.23 μg/ft3
0.26 μg/ft3
0.28 μg/ft3
NO2
0.8 ppb
0.9 ppb
1 ppb
1 ppb
1.4 ppb
1.8 ppb
2.1 ppb
2.1 ppb
2.1 ppb
SO2
0.2 ppb
0.2 ppb
0.2 ppb
0.2 ppb
0.3 ppb
0.3 ppb
0.4 ppb
0.4 ppb
0.5 ppb
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.2 ppb
O3
33.4 ppb
33.5 ppb
33.5 ppb
33.6 ppb
33.6 ppb
33.5 ppb
33.4 ppb
33.4 ppb
33.6 ppb