– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Sun 07 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sun 07 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sun 07 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA heavy fall of snow, heaviest during Mon night. Temperatures will be below freezing (max 0°C on Mon afternoon, min -6°C on Mon night). Winds increasing (light winds from the WSW on Tue morning, gales from the W by Tue night). | Days 4–6 Weather SummaryA moderate fall of snow, heaviest on Wed morning. Becoming mild with drizzle, on Thu night. Freeze-thaw conditions (max 2°C on Thu night, min -6°C on Wed morning). Winds decreasing (strong winds from the W on Wed morning, light winds from the WSW by Thu morning). | |||||||||||||||||
Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | |  |  | |  | | |  | | | | |  |  | |
light snow | light snow | light snow | light snow | light snow | heavy snow | some clouds | light snow | mod. snow | light snow | light snow | cloudy | light snow | light snow | light snow | some clouds | rain shwrs | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
5 | 2 | 5 | 3 | 4 | 12 | — | 1 | 7 | 3 | 3 | — | 1 | 2 | 1 | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.9 | — | 0.3 | — | |
max°C | -3 | -4 | -4 | -1 | 0 | 0 | -4 | -4 | -1 | -6 | -5 | -3 | -2 | 1 | 2 | 2 | 2 | 2 |
min°C | -3 | -5 | -5 | -3 | 0 | -6 | -5 | -5 | -5 | -6 | -5 | -5 | -3 | 0 | 1 | 1 | 2 | 1 |
-11 | -14 | -13 | -12 | -9 | -15 | -12 | -11 | -15 | -16 | -14 | -13 | -9 | -7 | -5 | -4 | -4 | -5 | |
1400 | 1600 | 1350 | 1550 | 2200 | 1200 | 1250 | 1300 | 1950 | 1300 | 1350 | 1250 | 1650 | 2000 | 2500 | 2500 | 2750 | 2800 | |
Cloud base (m) | 550 | 600 | 600 | 550 | 550 | 600 | 650 | 2000 | 550 | 600 | 600 | 750 | 2350 | 1550 | 650 | 750 | 600 | 700 |
 | 7:46 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — | 7:50 | — | — |
 | — | 4:12 | — | — | 4:10 | — | — | 4:10 | — | — | 4:10 | — | — | 4:10 | — | — | 4:10 | — |
Loading...
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A heavy fall of snow, heaviest during Mon night. Temperatures will be below freezing (max 0°C on Mon afternoon, min -6°C on Mon night). Winds increasing (light winds from the WSW on Tue morning, gales from the W by Tue night).
South Twin Sister Weather (Days 3-6):
A moderate fall of snow, heaviest on Wed morning. Becoming mild with drizzle, on Thu night. Freeze-thaw conditions (max 2°C on Thu night, min -6°C on Wed morning). Winds decreasing (strong winds from the W on Wed morning, light winds from the WSW by Thu morning).
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.