Mountain resort image
– Lat/Long: 48.71° N 121.99° W

South Twin Sister
Weather Forecast, United States

Issued: 10 am Fri 22 May Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Mostly dry. Mild temperatures (max 7°C on Fri afternoon, min 1°C on Sun morning). Winds increasing (light winds from the WSW on Fri afternoon, strong winds from the S by Sun night).

Days 4–6 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 5°C on Wed afternoon, min -3°C on Mon night). Winds decreasing (strong winds from the S on Mon afternoon, calm by Mon night).

Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
clear
part cloud
part cloud
rain showers
part cloud
part cloud
clear
cloud
cloud
cloud
light snow
cloud
part cloud
part cloud
rain showers
rain showers
part cloud
some clouds
clear
some clouds
some clouds
rain shwrs
some clouds
some clouds
clear
cloudy
cloudy
cloudy
light snow
cloudy
some clouds
some clouds
rain shwrs
rain shwrs
some clouds
km/h
5
WSW
5
WSW
10
WSW
15
W
20
W
25
WSW
20
WSW
15
SW
40
SSW
40
S
35
S
5
S
5
N
10
NNW
5
NNW
10
WNW
10
WNW
5
WSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
1
0.1
0.1
0.1
max °C
5
7
6
4
5
4
2
4
4
2
2
-1
-2
0
2
3
5
5
min °C
5
6
4
3
5
2
1
3
2
2
2
-3
-3
0
0
2
4
4
3
5
0
-1
1
-3
-4
-1
-5
-5
-5
-3
-3
-2
-3
-1
1
2
2750
3000
2950
2950
2950
2650
2450
2750
2750
2400
2350
1650
1700
2200
2550
3300
3150
3350
Cloud base (m)
7700
2700
6650
2350
1800
2800
2600
2600
2850
700
600
800
2000
850
1650
Sea lvl1000m2000m3000m4000m5000m
57545324322-2-301355101110796598772134467172014141711121713141688119111512
Sunrise
5:18
5:16
5:16
5:15
5:13
5:13
Sunset
8:51
8:52
8:52
8:53
8:54
8:57

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Mostly dry. Mild temperatures (max 7°C on Fri afternoon, min 1°C on Sun morning). Winds increasing (light winds from the WSW on Fri afternoon, strong winds from the S by Sun night).

South Twin Sister Weather (Days 3-6):

A dusting of new snow. Freeze-thaw conditions (max 5°C on Wed afternoon, min -3°C on Mon night). Winds decreasing (strong winds from the S on Mon afternoon, calm by Mon night).

This table gives the weather forecast for South Twin Sister at the specific elevation of 2134 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.

Live conditions reported by 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
22 km WSW
94m alt.
1 hour ago
18° C
Dry
13
Light winds from the W
(13 kph at 262).
18
25 km WSW
198m alt.
33 minutes ago
-
0
Calm
(0 kph at 0).
0
26 km NW
125m alt.
2 hours ago
22° C
Dry
3
Calm
(3 kph at 218).
8
28 km NW
152m alt.
2 hours ago
21° C
Dry
Wind obs. (8 kph from 356 degs) was rejected.
30 km WSW
130m alt.
55 minutes ago
22° C
Dry
3
Calm
(3 kph at 317).
13
34 km SSW
30m alt.
29 minutes ago
19° C
Dry
6
Light winds from the W
(6 kph at 266).
14
35 km WNW
19m alt.
1 hour ago
22° C
Dry
3
Calm
(3 kph at 0).
11
35 km WSW
100m alt.
47 minutes ago
18° C
Dry
5
Calm
(5 kph at 267).
11
SHIP3378
38 km WSW
15m alt.
3 hours ago
11
Light winds from the SSW
(12 kph at 210).
- km
SHIP8185
38 km WSW
3m alt.
3 hours ago
17° C
9
Light winds from the S
(9 kph at 190).

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.