– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Sat 22 Nov Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sat 22 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sat 22 Nov 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. Temperatures will be below freezing (max -1°C on Sat morning, min -9°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, light winds from the WSW by Mon night). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -1°C on Wed afternoon, min -7°C on Tue morning). Winds increasing (light winds from the SW on Tue night, strong winds from the SW by Wed night). | |||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | |  |  | |  |  | | |  | | |  | | | |
light snow | light snow | heavy snow | light snow | light snow | snow shwrs | some clouds | some clouds | some clouds | cloudy | light snow | heavy snow | mod. snow | mod. snow | heavy snow | heavy snow | light snow | heavy snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
3 | 4 | 17 | 5 | 1 | 2 | — | — | — | — | 3 | 14 | 8 | 9 | 12 | 12 | 4 | 17 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -1 | -1 | -1 | -4 | -7 | -9 | -9 | -8 | -7 | -6 | -5 | -3 | -2 | -1 | -1 | -2 | -2 | -3 |
min°C | -1 | -1 | -3 | -5 | -7 | -9 | -9 | -8 | -8 | -7 | -6 | -5 | -2 | -1 | -1 | -3 | -2 | -5 |
-8 | -7 | -9 | -12 | -14 | -16 | -15 | -13 | -11 | -12 | -11 | -9 | -8 | -9 | -9 | -10 | -8 | -10 | |
2000 | 1900 | 1800 | 1450 | 950 | 800 | 850 | 950 | 750 | 950 | 1150 | 1050 | 1450 | 1850 | 1950 | 1650 | 1750 | 1450 | |
Cloud base (m) | 600 | 550 | 550 | 600 | 600 | 600 | 650 | 700 | 600 | 1000 | 2150 | 600 | 600 | 550 | 600 | 600 | 550 | 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 | — |
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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. Temperatures will be below freezing (max -1°C on Sat morning, min -9°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, light winds from the WSW by Mon night).
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -1°C on Wed afternoon, min -7°C on Tue morning). Winds increasing (light winds from the SW on Tue night, strong winds from the SW 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.