– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Thu 21 Nov Local TimeUpdates in: hr min sUpdate imminent
South Twin SisterWeather Forecast, United States
Issued: 3 am Thu 21 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Thu 21 Nov Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA moderate fall of snow, heaviest on Fri morning. Temperatures will be below freezing (max 0°C on Fri morning, min -7°C on Sat night). Winds decreasing (near gales from the S on Fri morning, light winds from the S by Fri night). | Days 4–6 Weather SummaryA dusting of new snow. Temperatures will be below freezing (max -5°C on Mon morning, min -7°C on Sun morning). Wind will be generally light. | |||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  |  | | | | |  |  | |  | | | | |
some clouds | light snow | light snow | light snow | light snow | some clouds | cloudy | some clouds | light snow | cloudy | light snow | snow shwrs | clear | clear | clear | some clouds | cloudy | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | 1.0 | 2.0 | 4 | 2.0 | — | — | — | 1.0 | — | 1.0 | 1.0 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -4 | -4 | -1 | 0 | -4 | -5 | -5 | -6 | -6 | -6 | -7 | -6 | -5 | -5 | -5 | -7 | -7 | -6 |
min°C | -5 | -5 | -4 | -3 | -5 | -5 | -6 | -6 | -7 | -7 | -7 | -7 | -5 | -5 | -6 | -7 | -7 | -6 |
-10 | -12 | -9 | -13 | -14 | -14 | -11 | -11 | -13 | -12 | -11 | -12 | -5 | -5 | -8 | -13 | -15 | -12 | |
1500 | 1600 | 1900 | 2200 | 1550 | 1350 | 1300 | 1200 | 1000 | 1200 | 950 | 950 | 1300 | 1250 | 650 | 900 | 900 | 650 | |
Cloud base (m) | 800 | 2200 | 650 | 750 | 650 | 700 | 700 | 700 | 800 | 900 | 750 | 600 | 1550 | 800 | 700 | 600 | 600 | 600 |
 | 7:26 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — |
 | — | 4:20 | — | — | 4:19 | — | — | 4:17 | — | — | 4:17 | — | — | 4:16 | — | — | 4:15 | — |
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A moderate fall of snow, heaviest on Fri morning. Temperatures will be below freezing (max 0°C on Fri morning, min -7°C on Sat night). Winds decreasing (near gales from the S on Fri morning, light winds from the S by Fri night).
South Twin Sister Weather (Days 3-6):
A dusting of new snow. Temperatures will be below freezing (max -5°C on Mon morning, min -7°C on Sun morning). 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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