– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Mon 20 May Local TimeUpdates in: hr min sUpdate imminent
South Twin SisterWeather Forecast, United States
Issued: 10 am Mon 20 May Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Mon 20 May 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 Tue night. Temperatures will be below freezing (max 0°C on Mon afternoon, min -4°C on Wed morning). Wind will be generally light. | Days 4–6 Weather SummaryA moderate fall of snow, heaviest on Fri night. Temperatures will be below freezing (max 0°C on Thu afternoon, min -6°C on Fri night). Wind will be generally light. | |||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | | | | | | | |  | | | | |
cloudy | some clouds | some clouds | light snow | mod. snow | heavy snow | light snow | cloudy | some clouds | cloudy | cloudy | some clouds | light snow | light snow | mod. snow | cloudy | cloudy | some clouds | |
km/h | ||||||||||||||||||
Wave Height Map |  |  |  |  |  |  | ||||||||||||
— | — | — | 3 | 8 | 14 | 4 | — | — | — | — | — | 4 | 1.0 | 8 | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -2 | 0 | -1 | -1 | -1 | -1 | -3 | -1 | -1 | -1 | 0 | 0 | -2 | -3 | -4 | -4 | -2 | -1 |
min°C | -2 | -1 | -2 | -1 | -1 | -3 | -4 | -2 | -1 | -1 | -1 | -1 | -2 | -3 | -6 | -5 | -3 | -2 |
-5 | -5 | -7 | -6 | -7 | -3 | -8 | -8 | -6 | -1 | -4 | -6 | -7 | -9 | -11 | -11 | -8 | -6 | |
1750 | 2100 | 1850 | 1900 | 1900 | 1750 | 1400 | 1850 | 1850 | 1850 | 2050 | 2100 | 1700 | 1550 | 1150 | 1300 | 1550 | 1700 | |
Cloud base (m) | 1550 | 1700 | 950 | 550 | 550 | 550 | 550 | 600 | 850 | 750 | 700 | 1600 | 550 | 550 | 550 | 800 | 650 | 900 |
 | 5:18 | — | — | 5:18 | — | — | 5:16 | — | — | 5:16 | — | — | 5:15 | — | — | 5:13 | — | — |
 | — | — | 8:50 | — | — | 8:51 | — | — | 8:52 | — | — | 8:52 | — | — | 8:53 | — | — | 8:54 |
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max 0°C on Mon afternoon, min -4°C on Wed morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A moderate fall of snow, heaviest on Fri night. Temperatures will be below freezing (max 0°C on Thu afternoon, 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.
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