– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Thu 04 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Thu 04 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Thu 04 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 Sat morning. Temperatures will be below freezing (max 0°C on Thu night, min -5°C on Fri night). Wind will be generally light. | Days 5–7 Weather SummaryA moderate fall of snow, heaviest on Mon night. Freeze-thaw conditions (max 2°C on Wed afternoon, min -3°C on Tue morning). Wind will be generally light. | ||||||||||||||||||
Friday 5 | Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  | |  |  | |  | | | | | |  | |  |  | |
some clouds | some clouds | light snow | mod. snow | mod. snow | light snow | light snow | snow shwrs | light snow | cloudy | light snow | light snow | light snow | light snow | light snow | some clouds | some clouds | rain shwrs | rain shwrs | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | 2 | 6 | 9 | 4 | 2 | 1 | 1 | — | 2 | 2 | 5 | 3 | 1 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.1 | 0.1 | |
max °C | 0 | -3 | -2 | -3 | -5 | -4 | -4 | -3 | -1 | 0 | -2 | -1 | -1 | -3 | -1 | 0 | 1 | 2 | 3 |
min °C | -3 | -3 | -2 | -5 | -5 | -5 | -4 | -4 | -2 | -2 | -2 | -2 | -2 | -3 | -2 | -1 | 0 | 2 | 2 |
-8 | -8 | -7 | -11 | -11 | -10 | -9 | -8 | -5 | -8 | -7 | -8 | -6 | -7 | -6 | -4 | -3 | -1 | -2 | |
1950 | 1750 | 1800 | 1500 | 1350 | 1550 | 1450 | 1600 | 2050 | 1700 | 1800 | 2050 | 1800 | 1650 | 1900 | 2150 | 2450 | 2600 | 3000 | |
Cloud base (m) | 750 | 900 | 1600 | 650 | 550 | 600 | 650 | 550 | 850 | 700 | 550 | 650 | 600 | 550 | 600 | 1600 | 650 | 900 | 2150 |
 | — | 5:07 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | — | — | 9:05 | — | — | 9:06 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 | — | — | 9:08 |
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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 morning. Temperatures will be below freezing (max 0°C on Thu 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 Mon night. Freeze-thaw conditions (max 2°C on Wed afternoon, min -3°C on Tue morning). 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.