Sat
Apr 27
Very stable
~11
l/m2
77%
6-11 cm snow
6 / 19 km/h
Sat Apr 27
Sun
Apr 28
Very stable
~10
l/m2
69%
6-10 cm snow
12 / 23 km/h
Sun Apr 28
Mon
Apr 29
Mostly stable
17-29 cm snow
11 / 22 km/h
Mon Apr 29
Tue
Apr 30
Mostly stable
~18
l/m2
94%
10-18 cm snow
7 / 9 km/h
Tue Apr 30
Thu
May 2
Very stable
~20
l/m2
95%
12-20 cm snow
7 / 16 km/h
Thu May 2
Fri
May 3
Very stable
~16
l/m2
98%
9-16 cm snow
7 / 14 km/h
Fri May 3
27 Apr will be cold and the weather will be very stable.
There is a 77% probability of moderate snowfall and showers.
The sky will be overcast:
51% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
67% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
98% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
21% convective clouds (Cumulonimbus)
The highest temperature will reach -5 degrees Celsius, while the the lowest temperature will drop to -7 degrees Celsius. The wind will be a light breeze, fog will form, and the mean air pressure will be 1018 mb. Relative humidity will be very high.
Saturday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
08:00
0.5 61%
71%
-6 °C
-9 °C
5 km/h 
18 km/h
1018 mb
96.5%
1,276 m
537 m
Apr, 27 08:00 @ Extremely stable
11:00
1.3 63%
79%
-6 °C
-9 °C
5 km/h
16 km/h
1018 mb
87.8%
1,224 m
857 m
Apr, 27 11:00 @ Very stable
14:00
1.5 66%
26%
-6 °C
-8 °C
5 km/h
18 km/h
1018 mb
94.8%
1,286 m
867 m
Apr, 27 14:00 @ Stable
17:00
3.4 77%
16%
-6 °C
-8 °C
4 km/h 
19 km/h
1019 mb
97.7%
1,337 m
672 m
Apr, 27 17:00 @ Stable
20:00
1.6 64%
-5 °C
-7 °C
4 km/h 
19 km/h
1019 mb
97.5%
1,548 m
512 m
Apr, 27 20:00 @ Stable
23:00
2.4 68%
4%
-5 °C
-8 °C
6 km/h 
13 km/h
1019 mb
97.8%
1,546 m
277 m
Apr, 27 23:00 @ Stable
28 Apr will be cold and the weather will be very stable.
There is a 69% probability of light snowfall and showers.
The sky will be overcast:
43% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
41% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
90% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
40% convective clouds (Cumulonimbus)
The highest temperature will reach -5 degrees Celsius, while the the lowest temperature will drop to -8 degrees Celsius. The wind will be a gentle breeze, fog will form, and the mean air pressure will be 1019 mb. Relative humidity will be very high.
Sunday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
0.5 59%
36%
-6 °C
-9 °C
7 km/h
14 km/h
1020 mb
97.2%
1,420 m
457 m
Apr, 28 02:00 @ Very stable
05:00
1.2 62%
66%
-6 °C
-9 °C
6 km/h
15 km/h
1020 mb
97.8%
1,319 m
342 m
Apr, 28 05:00 @ Very stable
08:00
0.5 46%
100%
-6 °C
-10 °C
8 km/h
18 km/h
1021 mb
91.7%
1,246 m
585 m
Apr, 28 08:00 @ Very stable
11:00
1.2 56%
100%
-6 °C
-11 °C
12 km/h
20 km/h
1020 mb
83.1%
1,265 m
1,064 m
Apr, 28 11:00 @ Very stable
14:00
1.1 61%
96%
-5 °C
-10 °C
10 km/h
20 km/h
1020 mb
83.7%
1,337 m
1,104 m
Apr, 28 14:00 @ Very stable
17:00
2.2 66%
92%
-6 °C
-11 °C
12 km/h
23 km/h
1020 mb
85.9%
1,291 m
995 m
Apr, 28 17:00 @ Very stable
20:00
1.1 64%
81%
-7 °C
-11 °C
6 km/h
18 km/h
1020 mb
96.3%
1,156 m
502 m
Apr, 28 20:00 @ Very stable
23:00
2 69%
71%
-8 °C
-11 °C
5 km/h
16 km/h
1020 mb
98.2%
1,034 m
402 m
Apr, 28 23:00 @ Very stable
29 Apr will be cold and the weather will be stable, thunderstorms not likely.
There is a 98% probability of moderate snowfall and showers.
The sky will be mostly cloudy:
66% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
81% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
28% convective clouds (Cumulonimbus)
The highest temperature will reach -7 degrees Celsius, while the the lowest temperature will drop to -12 degrees Celsius. The wind will be a gentle breeze, fog will form, and the mean air pressure will be 1019 mb. Relative humidity will be very high.
Monday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
1.8 68%
11%
-8 °C
-12 °C
6 km/h
21 km/h
1018 mb
99.1%
951 m
527 m
Apr, 29 02:00 @ Stable
05:00
6.7 96%
5%
-9 °C
-13 °C
6 km/h
14 km/h
1017 mb
99.6%
817 m
305 m
Apr, 29 05:00 @ Mostly stable
08:00
6.9 98%
1%
-10 °C
-14 °C
8 km/h
10 km/h
1019 mb
99.5%
733 m
216 m
Apr, 29 08:00 @ Mostly stable
11:00
8 98%
5%
-9 °C
-14 °C
8 km/h
12 km/h
1020 mb
99.3%
804 m
313 m
Apr, 29 11:00 @ Mostly stable
14:00
0.9 61%
85%
-8 °C
-14 °C
10 km/h
18 km/h
1021 mb
94.0%
924 m
718 m
Apr, 29 14:00 @ Mostly stable
17:00
2.6 61%
93%
-7 °C
-13 °C
11 km/h
22 km/h
1020 mb
90.4%
1,056 m
907 m
Apr, 29 17:00 @ Stable
20:00
1 50%
98%
-9 °C
-12 °C
5 km/h
6 km/h
1021 mb
96.1%
913 m
43 m
Apr, 29 20:00 @ Stable
23:00
1.1 41%
94%
-12 °C
-12 °C
2 km/h 
4 km/h
1022 mb
98.2%
529 m
25 m
Apr, 29 23:00 @ Stable
30 Apr will be cold and the weather will be stable, thunderstorms not likely.
There is a 94% probability of moderate snowfall and showers.
The sky will be overcast:
67% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
93% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
14% convective clouds (Cumulonimbus)
The highest temperature will reach -8 degrees Celsius, while the the lowest temperature will drop to -12 degrees Celsius. The wind will be a light breeze, fog will form, and the mean air pressure will be 1020 mb. Relative humidity will be very high.
Tuesday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
2.3 69%
-11 °C
-14 °C
4 km/h 
5 km/h
1020 mb
99.3%
515 m
79 m
Apr, 30 02:00 @ Mostly stable
05:00
6.3 94%
2%
-10 °C
-12 °C
3 km/h
9 km/h
1019 mb
99.5%
732 m
229 m
Apr, 30 05:00 @ Mostly stable
08:00
2 68%
7%
-9 °C
-11 °C
3 km/h 
7 km/h
1020 mb
98.7%
808 m
202 m
Apr, 30 08:00 @ Mostly stable
11:00
3.5 75%
6%
-9 °C
-10 °C
3 km/h
4 km/h
1020 mb
97.3%
871 m
299 m
Apr, 30 11:00 @ Mostly stable
14:00
1.5 65%
28%
-8 °C
-12 °C
7 km/h
7 km/h
1021 mb
97.2%
947 m
346 m
Apr, 30 14:00 @ Mostly stable
17:00
1.9 64%
37%
-8 °C
-12 °C
7 km/h
9 km/h
1021 mb
95.5%
969 m
386 m
Apr, 30 17:00 @ Mostly stable
20:00
-8 °C
-12 °C
6 km/h
7 km/h
1022 mb
97.0%
1,024 m
85 m
Apr, 30 20:00 @ Mostly stable
23:00
-9 °C
-11 °C
4 km/h
5 km/h
1024 mb
98.6%
905 m
94 m
Apr, 30 23:00 @ Mostly stable
1 May will be cold and the weather will be very stable.
The sky will be overcast:
40% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
40% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
66% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
2% convective clouds (Cumulonimbus)
The highest temperature will reach -3 degrees Celsius, while the the lowest temperature will drop to -9 degrees Celsius. The wind will be a light breeze, fog will form, and the mean air pressure will be 1023 mb. Relative humidity will be very high.
Wednesday
Weather
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
-9 °C
-12 °C
5 km/h
7 km/h
1025 mb
99.4%
980 m
137 m
May, 1 02:00 @ Stable
05:00
-9 °C
-12 °C
5 km/h
6 km/h
1026 mb
98.9%
903 m
123 m
May, 1 05:00 @ Stable
08:00
-9 °C
-10 °C
3 km/h
4 km/h
1026 mb
96.2%
914 m
183 m
May, 1 08:00 @ Stable
11:00
-7 °C
-10 °C
5 km/h
5 km/h
1025 mb
85.5%
1,031 m
733 m
May, 1 11:00 @ Stable
14:00
-6 °C
-8 °C
4 km/h
4 km/h
1024 mb
79.3%
1,251 m
842 m
May, 1 14:00 @ Stable
17:00
-4 °C
-5 °C
3 km/h
4 km/h
1023 mb
75.5%
1,565 m
842 m
May, 1 17:00 @ Stable
20:00
-3 °C
-5 °C
4 km/h
6 km/h
1021 mb
93.7%
1,968 m
29 m
May, 1 20:00 @ Stable
23:00
-4 °C
-7 °C
6 km/h
9 km/h
1021 mb
93.7%
1,946 m
47 m
May, 1 23:00 @ Very stable
2 May will be cold and the weather will be very stable.
There is a 95% probability of moderate snowfall and showers.
The sky will be mostly cloudy:
23% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
42% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
80% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
17% convective clouds (Cumulonimbus)
The highest temperature will reach -4 degrees Celsius, while the the lowest temperature will drop to -8 degrees Celsius. The wind will be a light breeze, fog will form, and the mean air pressure will be 1019 mb. Relative humidity will be very high.
Thursday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
0.5 55%
-6 °C
-9 °C
6 km/h
9 km/h
1019 mb
94.9%
1,517 m
52 m
May, 2 02:00 @ Stable
05:00
6.1 93%
-6 °C
-10 °C
7 km/h
16 km/h
1018 mb
99.1%
1,329 m
299 m
May, 2 05:00 @ Mostly stable
08:00
4.2 82%
-7 °C
-8 °C
3 km/h
9 km/h
1018 mb
99.3%
1,242 m
166 m
May, 2 08:00 @ Very stable
11:00
6.5 95%
4%
-7 °C
-9 °C
4 km/h
8 km/h
1019 mb
98.6%
1,241 m
293 m
May, 2 11:00 @ Extremely stable
14:00
1.1 54%
68%
-6 °C
-8 °C
4 km/h
9 km/h
1019 mb
90.8%
1,301 m
581 m
May, 2 14:00 @ Extremely stable
17:00
1.7 53%
79%
-4 °C
-7 °C
5 km/h
9 km/h
1019 mb
78.8%
1,456 m
971 m
May, 2 17:00 @ Extremely stable
20:00
-5 °C
-6 °C
3 km/h
3 km/h
1020 mb
90.0%
1,494 m
12 m
May, 2 20:00 @ Very stable
23:00
-7 °C
-10 °C
5 km/h
5 km/h
1021 mb
95.2%
1,187 m
16 m
May, 2 23:00 @ Very stable
3 May will be cold and the weather will be very stable.
There is a 98% probability of moderate snowfall and showers.
The sky will be overcast:
98% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
97% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
51% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
6% convective clouds (Cumulonimbus)
The highest temperature will reach 0 degrees Celsius, while the the lowest temperature will drop to -8 degrees Celsius. The wind will be a light breeze, fog will form, and the mean air pressure will be 1014 mb. Relative humidity will be very high.
Friday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
-7 °C
-11 °C
6 km/h
7 km/h
1020 mb
96.4%
1,367 m
22 m
May, 3 02:00 @ Very stable
05:00
-6 °C
-9 °C
7 km/h
7 km/h
1019 mb
94.8%
1,696 m
37 m
May, 3 05:00 @ Very stable
08:00
-1 °C
-4 °C
7 km/h
10 km/h
1016 mb
86.7%
2,381 m
145 m
May, 3 08:00 @ Extremely stable
11:00
-1 °C
-3 °C
7 km/h
12 km/h
1014 mb
67.0%
2,142 m
766 m
May, 3 11:00 @ Very stable
14:00
-1 °C
-4 °C
6 km/h
14 km/h
1012 mb
57.0%
1,860 m
1,232 m
May, 3 14:00 @ Very stable
17:00
1.9 68%
7%
-4 °C
-7 °C
7 km/h
14 km/h
1012 mb
94.3%
1,572 m
566 m
May, 3 17:00 @ Stable
20:00
5.3 89%
3%
-5 °C
-7 °C
4 km/h
6 km/h
1012 mb
98.9%
1,441 m
107 m
May, 3 20:00 @ Stable
23:00
8.6 98%
3%
-6 °C
-7 °C
3 km/h
4 km/h
1011 mb
98.7%
1,371 m
151 m
May, 3 23:00 @ Stable
4 May will be cold and the weather will be .
There is a 66% probability of light snowfall and showers.
The sky will be :
324% high clouds (above 6,000 meters: Cirrus, Cirrus uncinus, Cirrostratus, Cirrocumulus)
500% middle clouds (from 2,000 to 6,000 meters: Altostratus, Altocumulus)
422% low clouds (below 2,000 meters: Cumulus, Stratocumulus, Stratus, Fractostratus)
142% convective clouds (Cumulonimbus)
The highest temperature will reach -5 degrees Celsius, while the the lowest temperature will drop to -8 degrees Celsius. The wind will be a light breeze, fog will form, and the mean air pressure will be 5031 mb. Relative humidity will be .
Saturday
Weather
Precipitation mm probability
Showers (% of Precipitation)
Temperature °C
Felt temperature °C
Temperature low | high °C
Wind speed
Wind gusts
Atmospheric pressure
Relative humidity
Isotherm 0°C
Boundary Layer
Heat index
02:00
0.5 58%
20%
-6 °C
-4 °C
1 km/h
3 km/h
1009 mb
98.8%
1,302 m
165 m
May, 4 02:00 @ Stable
05:00
1.3 66%
15%
-7 °C
-9 °C
5 km/h
5 km/h
1007 mb
98.8%
1,204 m
221 m
May, 4 05:00 @ Stable
08:00
0.4 58%
28%
-7 °C
-10 °C
5 km/h
7 km/h
1006 mb
97.1%
1,140 m
313 m
May, 4 08:00 @ Stable
11:00
1.2 63%
61%
-6 °C
-9 °C
6 km/h
9 km/h
1006 mb
87.0%
1,182 m
750 m
May, 4 11:00 @ Stable
14:00
0.9 59%
100%
-5 °C
-8 °C
6 km/h
8 km/h
1005 mb
76.9%
1,323 m
979 m
May, 4 14:00 @ Stable
Mount Saint Helens
12:40 
