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

South Twin Sister
Weather Forecast, United States

Issued: 9 pm Tue 20 Jan Local Time
Updates in:
hr min s
Update imminent

Days 1–4 Weather Summary

Mostly dry. Freeze-thaw conditions (max 4°C on Tue night, min -3°C on Thu night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Temperatures will be below freezing (max 0°C on Fri night, min -5°C on Mon afternoon). Wind will be generally light.

Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
clear
part cloud
part cloud
part cloud
cloud
cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
some clouds
some clouds
some clouds
cloudy
cloudy
clear
clear
clear
clear
some clouds
clear
clear
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
 km/h
15
NW
10
NW
10
WNW
10
WNW
0
NNE
5
N
10
NE
15
NE
10
NNE
10
N
10
WNW
10
WNW
0
NNW
5
SSW
10
SW
15
SW
20
SW
20
WSW
10
WNW
max °C
4
3
1
1
-1
-2
-2
-2
-1
0
-1
-1
-1
-1
-1
-2
-3
-5
-3
min °C
3
2
1
-1
-2
-2
-3
-2
-2
-1
-1
-2
-2
-1
-2
-4
-4
-5
-5
0
-1
-3
-1
-2
-2
-8
-7
-6
-5
-4
-6
-5
-1
-6
-10
-11
-11
-10
2650
2600
2400
2200
1850
1700
1650
1900
1850
2000
2000
1900
1800
1950
1900
1750
1450
1150
1150
Cloud base (m)
5950
4950
5000
4200
9000
6750
7950
8550
6200
2750
1800
600
Sea lvl1000m2000m3000m4000m5000m
4310-2-2-3-2-2-1-1-2-2-1-2-3-4-5-47653111223222221-1-2-271075754864754865643
Sunrise
7:50
7:48
7:48
7:47
7:46
7:43
Sunset
4:47
4:50
4:52
4:52
4:54
4:55

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Mostly dry. Freeze-thaw conditions (max 4°C on Tue night, min -3°C on Thu night). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Mostly dry. Temperatures will be below freezing (max 0°C on Fri night, min -5°C on Mon afternoon). Wind will be generally light.

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
-1° C
-
0
Calm
(0 kph at 150).
0
25 km WNW
102m alt.
1 hour ago
3° C
Dry
0
Calm
(0 kph at 88).
2
25 km WSW
198m alt.
1 hour ago
2° C
-
0
Calm
(0 kph at 225).
0
26 km NW
125m alt.
23 minutes ago
-2° C
-
0
Calm
(0 kph at 69).
2
27 km WSW
99m alt.
37 minutes ago
-1° C
-
2
Calm
(2 kph at 97).
3
28 km NW
152m alt.
1 hour ago
-3° C
-
0
Calm
(0 kph at 159).
0
30 km WSW
130m alt.
25 minutes ago
-1° C
-
35 km WNW
19m alt.
1 hour ago
0° C
-
0
Calm
(0 kph at 0).
2
35 km WSW
100m alt.
1 hour ago
3° C
Dry
0
Calm
(0 kph at 329).
0
38 km WSW
56.1m alt.
59 minutes ago
Dry

* 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.