Hourly Weather in Grass Valley, Montana, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
14 mph
Breezy
4 mph
Calm
4 mph
Calm
4 mph
Calm
3 mph
Calm
3 mph
Calm
3 mph
Calm
3 mph
Calm
3 mph
Calm
Humidity
51%
Comfortable
59%
Comfortable
63%
Humid
67%
Humid
69%
Humid
71%
Extremely humid
72%
Extremely humid
72%
Extremely humid
72%
Extremely humid
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
1028 hPa
Very high
1030 hPa
Very high
1030 hPa
Very high
1031 hPa
Very high
1030 hPa
Very high
1030 hPa
Very high
1031 hPa
Very high
1031 hPa
Very high
1031 hPa
Very high
Clouds
100%
0%
0%
0%
0%
0%
0%
0%
0%
Dew point
14°
14°
14°
15°
15°
15°
15°
14°
14°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
39
Good
37
Good
34
Good
32
Good
30
Good
28
Good
27
Good
25
Good
26
Good
Pollen index
Tree
3 / 5
3 / 5
2 / 5
2 / 5
2 / 5
2 / 5
1 / 5
1 / 5
1 / 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
0.08 μg/ft3
0.08 μg/ft3
0.08 μg/ft3
0.07 μg/ft3
0.07 μg/ft3
0.07 μg/ft3
0.06 μg/ft3
0.06 μg/ft3
0.07 μg/ft3
PM25
0.06 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.04 μg/ft3
0.05 μg/ft3
NO2
1.95 ppb
2.41 ppb
2.43 ppb
2.46 ppb
2.48 ppb
2.41 ppb
2.35 ppb
2.28 ppb
1.82 ppb
SO2
0.1 ppb
0.1 ppb
0.09 ppb
0.08 ppb
0.06 ppb
0.06 ppb
0.05 ppb
0.05 ppb
0.05 ppb
CO
0.16 ppb
0.17 ppb
0.17 ppb
0.16 ppb
0.16 ppb
0.16 ppb
0.16 ppb
0.16 ppb
0.16 ppb
O3
37.51 ppb
34.84 ppb
32.93 ppb
31.02 ppb
29.12 ppb
27.71 ppb
26.31 ppb
24.91 ppb
27.74 ppb