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Hour-by-Hour Forecast for Mount Saint Helens National Volcanic Monument, Washington, USA

Currently: 79 °F. Sunny. (Weather station: Portland International Airport, USA). See more current weather

Hour-by-hour Forecast in Mount Saint Helens National Volcanic Monument — Graph

°F
Time
Wind
(mph)
Rain/Snow
()
Temp
(°F)
49
52
55
58
61
64
67
70
73
76
79
82
Wednesday, August 13, 2025
2 pm
80
8
3 pm
81
10
4 pm
81
11
5 pm
80
13
6 pm
78
11
7 pm
74
9
8 pm
70
7
9 pm
68
6
10 pm
65
4
11 pm
64
3
Thursday, August 14, 2025
12 am
63
2
1 am
62
1
2 am
61
2
3 am
61
1
4 am
61
1
5 am
60
1
6 am
60
1
7 am
60
1
8 am
60
1
9 am
62
1
10 am
64
1
11 am
65
2
12 pm
68
2
1 pm
70
3
2 pm
73
5
3 pm
74
5
4 pm
74
5
5 pm
75
5
6 pm
74
4
7 pm
72
4
8 pm
70
5
9 pm
69
3
10 pm
66
2
11 pm
65
2
Friday, August 15, 2025
0.01
12 am
65
2
0.02
1 am
64
3
0.03
2 am
64
4
0.04
3 am
63
5
0.04
4 am
63
5
0.04
5 am
63
6
0.04
6 am
63
6
0.04
7 am
62
5
0.04
8 am
62
5
0.04
9 am
63
6
0.03
10 am
64
6
0.02
11 am
64
7
0.02
12 pm
65
6
0.02
1 pm
67
5
0.02
2 pm
68
5
0.03
3 pm
68
5
0.04
4 pm
69
5
0.06
5 pm
69
5
0.07
6 pm
69
5
0.09
7 pm
69
6
0.09
8 pm
68
6
0.08
9 pm
67
6
0.06
10 pm
67
7
0.05
11 pm
66
7
Saturday, August 16, 2025
0.04
12 am
65
6
0.02
1 am
65
6
0.02
2 am
64
6
0.02
3 am
64
5
0.03
4 am
64
4
0.04
5 am
64
3
0.04
6 am
63
2
0.04
7 am
63
1
0.05
8 am
64
2
0.04
9 am
66
2
10 am
68
2
0.02
11 am
69
3
0.01
12 pm
70
2
1 pm
71
3
2 pm
71
5
3 pm
72
4
4 pm
72
3
5 pm
72
3
6 pm
71
3
7 pm
70
3
8 pm
67
4
9 pm
66
3
10 pm
64
3
11 pm
62
3
Sunday, August 17, 2025
12 am
61
3
1 am
60
2
2 am
59
2
3 am
58
2
4 am
58
2
5 am
58
2
6 am
58
1
7 am
57
0
8 am
60
1
9 am
63
1
10 am
65
2
11 am
67
3
12 pm
69
3
1 pm
71
4
2 pm
72
4
3 pm
73
4
4 pm
74
3
5 pm
75
3
6 pm
73
5
7 pm
71
6
8 pm
68
8
9 pm
66
6
10 pm
64
4
11 pm
61
2
Monday, August 18, 2025
12 am
60
1
1 am
59
0
2 am
58
1
3 am
57
1
4 am
57
1
5 am
57
2
6 am
57
1
7 am
57
1
8 am
59
1
9 am
63
2
10 am
65
2
11 am
67
3
12 pm
69
3
1 pm
72
4
2 pm
73
4
3 pm
75
3
4 pm
76
2
5 pm
77
2
6 pm
75
3
7 pm
72
5
8 pm
69
7
9 pm
65
5
10 pm
61
4
11 pm
59
3
Tuesday, August 19, 2025
12 am
58
2
1 am
56
2
2 am
55
1
3 am
54
1
4 am
53
2
5 am
53
2
6 am
52
1
7 am
51
0
8 am
55
1
9 am
61
1
10 am
65
2
11 am
68
3
12 pm
71
4
1 pm
75
4
2 pm
78
5
3 pm
80
6
4 pm
81
6
5 pm
81
7
6 pm
78
6
7 pm
74
6
8 pm
70
6
9 pm
65
5
10 pm
61
4
11 pm
60
4
Wednesday, August 20, 2025
12 am
57
3
1 am
55
2
2 am
54
1
3 am
53
1
4 am
52
1
Wed, Aug 13 at 2:00 pm
80 °F
Scattered clouds.
Feels Like: 80 °F
Humidity: 47%
Precipitation: Rain: 0 Snow: 0
Precipitation Chance: 0%
NW
Wind: 8 mph

Detailed Hourly Forecast — Next 24 hours

Scroll right to see more
 ConditionsComfortPrecipitation
Time TempWeatherFeels LikeWind HumidityChanceAmount
2:00 pm
Wed, Aug 13
80 °FScattered clouds.80 °F8 mph47%0%0.00" (snow)
0.00" (rain)
3:00 pm81 °FMostly sunny.81 °F10 mph46%0%0.00" (snow)
0.00" (rain)
4:00 pm81 °FSunny.81 °F11 mph46%0%0.00" (snow)
0.00" (rain)
5:00 pm80 °FSunny.80 °F13 mph47%0%0.00" (snow)
0.00" (rain)
6:00 pm78 °FSunny.79 °F11 mph51%0%0.00" (snow)
0.00" (rain)
7:00 pm74 °FSunny.77 °F9 mph57%0%0.00" (snow)
0.00" (rain)
8:00 pm70 °FSunny.75 °F7 mph64%0%0.00" (snow)
0.00" (rain)
9:00 pm68 °FClear.68 °F6 mph69%0%0.00" (snow)
0.00" (rain)
10:00 pm65 °FMostly clear.65 °F4 mph75%0%0.00" (snow)
0.00" (rain)
11:00 pm64 °FMostly clear.64 °F3 mph78%0%0.00" (snow)
0.00" (rain)
12:00 am
Thu, Aug 14
63 °FScattered clouds.63 °F2 mph79%0%0.00" (snow)
0.00" (rain)
1:00 am62 °FBroken clouds.62 °F1 mph81%0%0.00" (snow)
0.00" (rain)
2:00 am61 °FOvercast.61 °F2 mph81%3%0.00" (snow)
0.00" (rain)
3:00 am61 °FOvercast.61 °F1 mph80%0%0.00" (snow)
0.00" (rain)
4:00 am61 °FOvercast.61 °F1 mph80%0%0.00" (snow)
0.00" (rain)
5:00 am60 °FOvercast.60 °F1 mph81%0%0.00" (snow)
0.00" (rain)
6:00 am60 °FOvercast.60 °F1 mph81%3%0.00" (snow)
0.00" (rain)
7:00 am60 °FOvercast.60 °F1 mph82%4%0.00" (snow)
0.00" (rain)
8:00 am60 °FOvercast.60 °F1 mph80%5%0.00" (snow)
0.00" (rain)
9:00 am62 °FDrizzle. Overcast.62 °F1 mph74%14%0.00" (snow)
0.00" (rain)
10:00 am64 °FDrizzle. Overcast.64 °F1 mph68%16%0.00" (snow)
0.00" (rain)
11:00 am65 °FPassing showers. Cloudy.65 °F2 mph64%18%0.00" (snow)
0.00" (rain)
12:00 pm68 °FPassing showers. Mostly cloudy.68 °F2 mph57%20%0.00" (snow)
0.00" (rain)
1:00 pm70 °FBroken clouds.77 °F3 mph52%10%0.00" (snow)
0.00" (rain)
* Updated Wednesday, August 13, 2025 6:42:24 am Mount Saint Helens National Volcanic Monument time - Weather by CustomWeather, © 2025

14 days extended forecast