Hourly Weather in Waltham, Maine, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
10 mph
Breezy
10 mph
Light
11 mph
Breezy
12 mph
Breezy
9 mph
Light
8 mph
Light
9 mph
Light
7 mph
Light
7 mph
Light
Humidity
53%
Comfortable
44%
Dry
37%
Dry
38%
Dry
43%
Dry
50%
Comfortable
54%
Comfortable
58%
Comfortable
59%
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
1010 hPa
Normal
1009 hPa
Normal
1009 hPa
Low
1009 hPa
Low
1009 hPa
Normal
1010 hPa
Normal
1011 hPa
Normal
1012 hPa
Normal
1012 hPa
Normal
Clouds
15%
12%
10%
5%
2%
7%
17%
97%
97%
Dew point
40°
37°
34°
33°
34°
34°
34°
34°
34°
UV Index
1
1
0
0
0
0
0
0
0
Air quality
29
Good
29
Good
31
Good
31
Good
31
Good
31
Good
31
Good
31
Good
31
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
0.15 μg/ft3
0.12 μg/ft3
0.10 μg/ft3
0.08 μg/ft3
0.07 μg/ft3
0.07 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.04 μg/ft3
PM25
0.15 μg/ft3
0.11 μg/ft3
0.09 μg/ft3
0.08 μg/ft3
0.07 μg/ft3
0.06 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.04 μg/ft3
NO2
2.85 ppb
1.31 ppb
1.51 ppb
1.71 ppb
1.91 ppb
1.81 ppb
1.7 ppb
1.59 ppb
1.49 ppb
SO2
1.13 ppb
0.74 ppb
0.64 ppb
0.53 ppb
0.43 ppb
0.33 ppb
0.24 ppb
0.14 ppb
0.13 ppb
CO
0.2 ppb
0.17 ppb
0.17 ppb
0.17 ppb
0.17 ppb
0.17 ppb
0.17 ppb
0.17 ppb
0.17 ppb
O3
31.3 ppb
35.2 ppb
34.7 ppb
34.2 ppb
33.7 ppb
33.5 ppb
33.2 ppb
32.9 ppb
32.6 ppb