– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Wed 03 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Wed 03 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Wed 03 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA heavy fall of snow, heaviest during Fri night. Freeze-thaw conditions (max 2°C on Wed night, min -5°C on Fri night). Wind will be generally light. | Days 5–7 Weather SummaryA moderate fall of snow, heaviest on Tue morning. Freeze-thaw conditions (max 1°C on Mon night, min -4°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 4 | Friday 5 | Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  |  |  | |  |  | | | | |  |  | | | |
snow shwrs | snow shwrs | some clouds | cloudy | some clouds | light snow | heavy snow | mod. snow | light snow | light snow | cloudy | some clouds | light snow | light snow | cloudy | some clouds | heavy snow | light snow | some clouds | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
2 | 1 | — | — | — | 2 | 16 | 8 | 2 | 1 | — | — | 1 | 1 | — | — | 12 | 4 | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 2 | -1 | 2 | 1 | -3 | -2 | -2 | -5 | -4 | -4 | -4 | -1 | 0 | -2 | 0 | 1 | -2 | -2 | -2 |
min °C | 0 | -1 | 1 | -3 | -3 | -2 | -5 | -5 | -4 | -4 | -4 | -3 | -3 | -2 | -1 | 0 | -2 | -2 | -2 |
-4 | -5 | -2 | -8 | -8 | -7 | -11 | -11 | -9 | -8 | -9 | -7 | -10 | -7 | -7 | -4 | -5 | -5 | -7 | |
2300 | 2000 | 2450 | 1950 | 1650 | 1750 | 1450 | 1300 | 1550 | 1500 | 1500 | 2000 | 1850 | 1800 | 2200 | 2300 | 1800 | 1750 | 1800 | |
Cloud base (m) | 650 | 650 | 1850 | 1500 | 850 | 800 | 550 | 550 | 700 | 900 | 550 | 750 | 1750 | 550 | 700 | 2550 | 550 | 550 | 900 |
 | — | 5:07 | — | — | 5:07 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | — | — | 9:04 | — | — | 9:05 | — | — | 9:06 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 |
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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 Fri night. Freeze-thaw conditions (max 2°C on Wed night, min -5°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A moderate fall of snow, heaviest on Tue morning. Freeze-thaw conditions (max 1°C on Mon night, min -4°C on Sat 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.