– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Tue 02 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Tue 02 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Tue 02 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA light covering of new snow mostly falling on Thu morning. Temperatures will be below freezing (max -1°C on Thu afternoon, min -5°C on Tue morning). Winds increasing (calm on Tue night, fresh winds from the W by Thu afternoon). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Sat afternoon. Temperatures will be below freezing (max -1°C on Fri morning, min -6°C on Sat night). Winds decreasing (strong winds from the WNW on Fri morning, light winds from the WSW by Sat night). | |||||||||||||||||
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 | |
 |  |  |  | |  |  | |  |  | |  | |  | | | |  | |
some clouds | clear | some clouds | cloudy | some clouds | cloudy | light snow | light snow | light snow | mod. snow | light snow | mod. snow | mod. snow | heavy snow | mod. snow | light snow | light snow | snow shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | 4 | 4 | 1 | 7 | 4 | 7 | 9 | 13 | 6 | 4 | 3 | 1 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -5 | -4 | -3 | -4 | -2 | -2 | -2 | -1 | -1 | -1 | -3 | -4 | -5 | -5 | -5 | -4 | -4 | -3 |
min°C | -5 | -4 | -4 | -4 | -3 | -3 | -2 | -1 | -2 | -2 | -3 | -5 | -5 | -5 | -6 | -5 | -4 | -4 |
-10 | -8 | -10 | -10 | -8 | -11 | -7 | -8 | -8 | -11 | -11 | -14 | -13 | -13 | -14 | -13 | -13 | -11 | |
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 |
 | 7:39 | — | — | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — | 7:45 | — | — | 7:46 | — | — |
 | — | 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. Temperatures will be below freezing (max -1°C on Thu afternoon, min -5°C on Tue morning). Winds increasing (calm on Tue night, fresh winds from the W by Thu afternoon).
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Sat afternoon. Temperatures will be below freezing (max -1°C on Fri morning, min -6°C on Sat night). Winds decreasing (strong winds from the WNW on Fri morning, light winds from the WSW by Sat 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.