– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Sat 07 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sat 07 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sat 07 Mar 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 Sat night. Freeze-thaw conditions (max 1°C on Sat morning, min -14°C on Sun night). Winds decreasing (near gales from the WSW on Sun morning, moderate winds from the W by Mon night). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Wed afternoon. Temperatures will be below freezing (max -3°C on Wed afternoon, min -14°C on Thu afternoon). Winds increasing (moderate winds from the WSW on Tue afternoon, severe gales from the WSW by Wed night). | |||||||||||||||||
Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | |  | | | | |  | | | | | | |
cloudy | cloudy | snow shwrs | clear | light snow | heavy snow | light snow | mod. snow | heavy snow | mod. snow | light snow | heavy snow | heavy snow | heavy snow | heavy snow | light snow | mod. snow | heavy snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | 22 | — | 3 | 22 | 4 | 8 | 17 | 8 | 2 | 14 | 23 | 25 | 35 | 5 | 7 | 11 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 1 | 1 | 0 | -7 | -10 | -11 | -13 | -13 | -13 | -13 | -11 | -7 | -5 | -3 | -3 | -12 | -13 | -13 |
min °C | 1 | 0 | -5 | -9 | -11 | -14 | -14 | -13 | -14 | -13 | -12 | -10 | -6 | -4 | -12 | -12 | -14 | -14 |
-6 | -8 | -15 | -20 | -22 | -26 | -24 | -24 | -25 | -23 | -21 | -21 | -17 | -15 | -25 | -24 | -26 | -25 | |
2400 | 2200 | 1800 | 1050 | 750 | 500 | 400 | 450 | 0 | 400 | 550 | 600 | 750 | 1050 | 900 | 500 | 450 | 0 | |
Cloud base (m) | 600 | 600 | 550 | 750 | 550 | 600 | 600 | 600 | 600 | 650 | 600 | 600 | 550 | 550 | 650 | 600 | 600 | |
 | 6:37 | — | — | 7:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:28 | — | — | 6:26 | — | — |
 | — | 6:00 | — | — | 7:01 | — | — | 6:04 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A heavy fall of snow, heaviest during Sat night. Freeze-thaw conditions (max 1°C on Sat morning, min -14°C on Sun night). Winds decreasing (near gales from the WSW on Sun morning, moderate winds from the W by Mon night).
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Wed afternoon. Temperatures will be below freezing (max -3°C on Wed afternoon, min -14°C on Thu afternoon). Winds increasing (moderate winds from the WSW on Tue afternoon, severe gales from the WSW by Wed 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.