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

South Twin Sister
Weather Forecast, United States

Issued: 3 am Tue 02 Dec Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

A light covering of new snow mostly falling on Thu morning. Freeze-thaw conditions (max 2°C on Thu night, min -3°C on Tue morning). Wind will be generally light.

Days 4–6 Weather Summary

A heavy fall of snow, heaviest during Sat afternoon. Freeze-thaw conditions (max 2°C on Fri morning, min -2°C on Sat morning). Winds decreasing (fresh winds from the WSW on Fri night, light winds from the WSW by Sat afternoon).

Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
part cloud
part cloud
cloud
part cloud
cloud
light snow
light snow
light snow
mod snow
light snow
light snow
mod snow
mod snow
light snow
light snow
light snow
snow showers
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
light snow
light snow
light snow
mod. snow
light snow
light snow
mod. snow
mod. snow
light snow
light snow
light snow
snow shwrs
 km/h
5
E
5
E
5
SW
5
WNW
5
W
5
WSW
10
SSW
10
SSW
5
W
15
SW
20
W
30
WSW
20
SW
20
W
15
SSW
30
SSE
20
WSW
15
S
 cm 
3
3
1
6
2
5
6
8
3
3
2
1
 mm 
max°C
-3
-2
-2
-2
-2
-1
0
0
2
2
2
0
-1
-2
0
0
0
0
min°C
-3
-3
-2
-2
-2
-2
-1
0
0
1
1
-1
-2
-2
-2
-2
0
0
chill°C 
-3
-3
-2
-4
-5
-4
-4
-4
0
-3
-5
-6
-6
-7
-9
-9
-5
-4
Freezing level (m
1050
1100
1000
1100
1100
1200
1350
1650
1600
1750
1750
1450
1400
1150
1450
1250
1450
1450
Cloud base (m)
600
600
700
700
600
600
600
600
600
550
550
550
550
550
600
600
600
650
Sea lvl1000m2000m3000m4000m5000m
-5-4-4-4-3-3-2-1-2-2-3-5-5-5-6-5-4-4-3-3-2-2-2-2-10122-1-2-2-1-100443444445666645555
Sunrise
7:39
7:41
7:43
7:43
7:45
7:46
Sunset
4:13
4:13
4:12
4:12
4:12
4:12

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: A light covering of new snow mostly falling on Thu morning. Freeze-thaw conditions (max 2°C on Thu night, min -3°C on Tue morning). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

A heavy fall of snow, heaviest during Sat afternoon. Freeze-thaw conditions (max 2°C on Fri morning, min -2°C on Sat morning). Winds decreasing (fresh winds from the WSW on Fri night, light winds from the WSW by Sat afternoon).

This table gives the weather forecast for South Twin Sister at the specific elevation of 1500 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
22 km WSW
94m alt.
47 minutes ago
4° C
Dry
0
Calm
(0 kph at 103).
3
25 km WNW
102m alt.
2 hours ago
4° C
Dry
0
Calm
(0 kph at 112).
0
25 km WSW
198m alt.
1 hour ago
4° C
Dry
0
Calm
(0 kph at 45).
0
27 km WSW
99m alt.
1 hour ago
4° C
Dry
0
Calm
(0 kph at 145).
0
30 km WSW
130m alt.
2 hours ago
4° C
Dry
0
Calm
(0 kph at 282).
0
34 km SSW
30m alt.
3 hours ago
4° C
Dry
2
Calm
(2 kph at 96).
3
35 km WNW
19m alt.
49 minutes ago
4° C
Dry
0
Calm
(0 kph at 0).
0
35 km WSW
100m alt.
2 hours ago
6° C
Dry
2
Calm
(2 kph at 40).
6
SHIP4063
39 km W
15m alt.
3 hours ago
8
Light winds from the ENE
(8 kph at 60).
- km
39 km W
27m alt.
2 hours 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.