– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Sun 23 Nov Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sun 23 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sun 23 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 Sun morning. Temperatures will be below freezing (max -3°C on Sun morning, min -9°C on Sun night). Wind will be generally light. | Days 4–6 Weather SummaryA light covering of new snow mostly falling on Fri night. Temperatures will be below freezing (max -2°C on Wed morning, min -6°C on Fri night). Wind will be generally light. | |||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  | |  | | |  | | |  | | | | |
light snow | light snow | snow shwrs | snow shwrs | some clouds | some clouds | cloudy | light snow | mod. snow | cloudy | cloudy | cloudy | cloudy | cloudy | clear | some clouds | some clouds | mod. snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
5 | 1 | 4 | 1 | — | — | — | 4 | 7 | — | — | — | — | — | — | — | — | 8 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -3 | -5 | -7 | -9 | -8 | -6 | -5 | -4 | -3 | -2 | -2 | -2 | -2 | -3 | -3 | -3 | -4 | -4 |
min°C | -4 | -7 | -9 | -9 | -9 | -8 | -5 | -5 | -4 | -2 | -3 | -3 | -3 | -3 | -3 | -4 | -4 | -6 |
-10 | -13 | -16 | -16 | -13 | -11 | -10 | -9 | -9 | -8 | -8 | -7 | -3 | -3 | -3 | -10 | -10 | -13 | |
1500 | 1200 | 800 | 850 | 900 | 700 | 1100 | 850 | 1250 | 1750 | 1700 | 1700 | 1650 | 1550 | 1400 | 1350 | 1200 | 950 | |
Cloud base (m) | 600 | 600 | 1700 | 650 | 650 | 600 | 600 | 2100 | 600 | 650 | 600 | 850 | 900 | 750 | 700 | 700 | 700 | 1500 |
 | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — |
 | — | 4:19 | — | — | 4:17 | — | — | 4:17 | — | — | 4:16 | — | — | 4:15 | — | — | 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 Sun morning. Temperatures will be below freezing (max -3°C on Sun morning, min -9°C on Sun night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A light covering of new snow mostly falling on Fri night. Temperatures will be below freezing (max -2°C on Wed morning, min -6°C on Fri night). 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.