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

UsSouth Twin Sister
Weather Forecast, United States

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Issued: 10 am Thu 28 Mar Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

A dusting of new snow. Temperatures will be below freezing (max -3°C on Sat afternoon, min -8°C on Thu morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Freeze-thaw conditions (max 4°C on Mon night, min -4°C on Sun morning). Winds increasing (light winds from the WNW on Sun night, strong winds from the SSW by Tue night).

Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
cloud
light snow
cloud
part cloud
cloud
clear
part cloud
cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
cloudy
light snow
cloudy
some clouds
cloudy
clear
some clouds
cloudy
clear
clear
clear
clear
some clouds
some clouds
clear
clear
some clouds
some clouds
 km/h
25
S
25
S
20
S
5
NNE
10
NNE
5
NNE
5
NW
15
W
20
ENE
20
NNE
20
NNW
10
WNW
10
NW
20
NW
20
NW
15
WSW
20
WSW
40
SSW
Wave Height Map
T washington.wind.9.cc23
T washington.wind.33.cc23
T washington.wind.57.cc23
T washington.wind.81.cc23
T washington.wind.105.cc23
T washington.wind.129.cc23
 cm 
3
 mm 
max°C
-7
-6
-6
-7
-5
-4
-4
-3
-4
-3
1
2
2
3
4
4
4
4
min°C
-8
-7
-8
-7
-6
-5
-4
-4
-5
-4
-1
1
1
2
3
4
4
-1
chill°C 
-16
-15
-14
-7
-9
-10
-7
-9
-10
-11
-6
-4
-2
-2
-2
1
0
-9
Freezing level (m
1250
1200
1000
1100
1350
1500
1400
1600
1500
1700
2300
3100
3250
3400
3200
3150
2850
2450
Cloud base (m)
650
650
600
600
750
550
600
1700
2300
1700
1850
9600
8800
2150
Sea lvl1000m2000m3000m4000m5000m
-8-7-7-7-6-5-4-4-5-402234442-3-3-3-3-2-1-11113324578545347469571168129111610
Sunrise
6:52
6:50
6:48
6:46
6:43
6:41
Sunset
7:32
7:35
7:36
7:37
7:38
7:40

South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: A dusting of new snow. Temperatures will be below freezing (max -3°C on Sat afternoon, min -8°C on Thu morning). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 4°C on Mon night, min -4°C on Sun morning). Winds increasing (light winds from the WNW on Sun night, strong winds from the SSW by Tue 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 5 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
19 km S
155m alt.
26 minutes ago
9° C
Dry
0
Calm
(0 kph at 135).
3
22 km WSW
94m alt.
1 hour ago
11° C
Dry
Wind obs. (8 kph from 202 degs) was rejected.
25 km WSW
198m alt.
1 hour ago
9° C
Dry
2
Calm
(2 kph at 14).
3
25 km WNW
102m alt.
1 hour ago
11° C
Dry
3
Calm
(3 kph at 190).
13
26 km NW
125m alt.
2 hours ago
8° C
Dry
3
Calm
(3 kph at 209).
5

* 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.