– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4pm Wed 29 Mar Local TimeUpdates in: hr min sUpdate imminent
South Twin SisterWeather Forecast, United States
Issued: 4pm Wed 29 Mar Local Time
Updates in: hr min s
Update imminent 
Issued: 4pm Wed 29 Mar Local Time
Updates in: hr min s
Update imminent 
3 South Twin Sister Elevations: 3 Forecast Elevations:
South Twin Sister Weather (Days 0-3):A heavy fall of snow, heaviest during Fri night. Temperatures will be below freezing (max -2°C on Wed afternoon, min -11°C on Sat morning). Winds increasing (calm on Wed afternoon, strong winds from the SSW by Fri afternoon). |
(Days 3-6):A heavy fall of snow, heaviest during Sat afternoon. Temperatures will be well below freezing (max -8°C on Tue morning, min -12°C on Sat night). Wind will be generally light. |
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Wed
29
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Thursday
30
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Friday
31
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Saturday
1
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Sunday
2
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Monday
3
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Tue
4
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PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM |
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| some clouds | some clouds | cloudy | cloudy | snow shwrs | light snow | mod. snow | heavy snow | heavy snow | mod. snow | mod. snow | snow shwrs | snow shwrs | some clouds | some clouds | light snow | some clouds | clear | |
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Wind
km/h
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| - | - | - | - | 1 | 4 | 9 | 36 | 22 | 8 | 8 | 2 | 2 | - | - | 2 | - | - | |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | |
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Max
°C
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-2 | -3 | -6 | -7 | -7 | -8 | -8 | -7 | -11 | -11 | -11 | -11 | -10 | -10 | -10 | -9 | -9 | -8 |
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Min
°C
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-2 | -5 | -6 | -7 | -8 | -9 | -8 | -10 | -11 | -11 | -12 | -12 | -11 | -10 | -10 | -9 | -9 | -8 |
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Feels
°C
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-6 | -7 | -11 | -12 | -12 | -17 | -19 | -18 | -19 | -18 | -18 | -15 | -14 | -14 | -16 | -14 | -15 | -14 |
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| 1800 | 1550 | 1200 | 1100 | 750 | 800 | 950 | 750 | 700 | 700 | 150 | 600 | 750 | 0 | 700 | 800 | 200 | 900 | |
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- | - | 6:50 | - | - | 6:48 | - | - | 6:46 | - | - | 6:43 | - | - | 6:41 | - | - | 6:39 |
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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 heavy fall of snow, heaviest during Fri night. Temperatures will be below freezing (max -2°C on Wed afternoon, min -11°C on Sat morning). Winds increasing (calm on Wed afternoon, strong winds from the SSW by Fri afternoon).
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Sat afternoon. Temperatures will be well below freezing (max -8°C on Tue morning, min -12°C on Sat night). 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.
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