– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Thu 21 Nov Local TimeUpdates in: hr min sUpdate imminent
South Twin SisterWeather Forecast, United States
Issued: 3 am Thu 21 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Thu 21 Nov Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMild with light rain (total 2mm) on Fri morning Becoming colder with a light covering of snow, mostly falling on Fri morning. Freeze-thaw conditions (max 3°C on Thu night, min -3°C on Sat night). Winds increasing (calm on Thu morning, fresh winds from the SSE by Fri afternoon). | Days 4–6 Weather SummaryA dusting of new snow. Temperatures will be below freezing (max -1°C on Mon morning, min -6°C on Tue night). Wind will be generally light. | |||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  |  | | | | |  |  | |  | | | | |
some clouds | light snow | light snow | light snow | light snow | some clouds | cloudy | some clouds | light snow | cloudy | cloudy | snow shwrs | clear | clear | clear | some clouds | cloudy | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | 1.0 | 1.0 | 2.0 | 1.0 | — | — | — | 1.0 | — | — | 1.0 | — | — | — | — | — | — | |
— | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 0 | 1 | 3 | 3 | 0 | -1 | -1 | -2 | -2 | -2 | -3 | -2 | -1 | -1 | -2 | -4 | -4 | -5 |
min°C | 0 | -1 | 0 | 1 | 0 | -1 | -2 | -2 | -3 | -3 | -4 | -3 | -1 | -1 | -4 | -4 | -4 | -6 |
-2 | -5 | -4 | -5 | -7 | -7 | -5 | -6 | -6 | -6 | -7 | -6 | -1 | -3 | -7 | -7 | -8 | -10 | |
1500 | 1600 | 1900 | 2200 | 1550 | 1350 | 1300 | 1200 | 1000 | 1200 | 950 | 950 | 1300 | 1250 | 650 | 900 | 900 | 650 | |
Cloud base (m) | 800 | 2200 | 650 | 750 | 650 | 700 | 700 | 700 | 800 | 900 | 750 | 600 | 1550 | 800 | 700 | 600 | 600 | 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 | — |
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mild with light rain (total 2mm) on Fri morning Becoming colder with a light covering of snow, mostly falling on Fri morning. Freeze-thaw conditions (max 3°C on Thu night, min -3°C on Sat night). Winds increasing (calm on Thu morning, fresh winds from the SSE by Fri afternoon).
South Twin Sister Weather (Days 3-6):
A dusting of new snow. Temperatures will be below freezing (max -1°C on Mon morning, min -6°C on Tue night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 1500 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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