– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Tue 03 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Tue 03 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Tue 03 Mar 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. Freeze-thaw conditions (max 2°C on Tue morning, min -4°C on Wed night). Winds decreasing (strong winds from the SSW on Tue morning, calm by Thu night). | Days 4–6 Weather SummaryMild with moderate rain (total 11mm) on Sun morning, Becoming colder with a light covering of snow, mostly falling on Sun morning. Freeze-thaw conditions (max 3°C on Sat morning, min -5°C on Sun night). Wind will be generally light. | |||||||||||||||||
Tuesday 3 | Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | |  |  | | | | |  |  | | | | |
light snow | cloudy | heavy snow | light snow | some clouds | mod. snow | light snow | snow shwrs | light snow | cloudy | cloudy | light snow | cloudy | light rain | mod. rain | light snow | light snow | light snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
1 | — | 11 | 5 | — | 6 | 4 | 2 | 2 | — | — | 1 | — | — | — | 2 | 2 | 3 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 8 | 3 | — | — | |
max °C | 2 | 1 | 0 | -1 | -1 | -2 | -4 | -3 | -3 | -2 | -2 | 1 | 3 | 3 | 2 | 2 | 2 | -4 |
min °C | 1 | 1 | -1 | -2 | -1 | -4 | -4 | -4 | -3 | -3 | -2 | -1 | 2 | 3 | 2 | 2 | 0 | -5 |
-6 | -5 | -6 | -6 | -4 | -10 | -10 | -8 | -7 | -5 | -6 | -5 | -1 | -1 | -2 | -3 | -6 | -11 | |
1800 | 1650 | 1500 | 1200 | 1350 | 1050 | 900 | 1000 | 1050 | 1050 | 1250 | 1650 | 2350 | 2300 | 2100 | 2050 | 1850 | 750 | |
Cloud base (m) | 600 | 550 | 550 | 550 | 550 | 600 | 600 | 600 | 600 | 600 | 750 | 600 | 600 | 600 | 600 | 600 | 550 | 600 |
 | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 7:35 | — | — |
 | — | 5:54 | — | — | 5:55 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 7:01 | — |
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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 Tue night. Freeze-thaw conditions (max 2°C on Tue morning, min -4°C on Wed night). Winds decreasing (strong winds from the SSW on Tue morning, calm by Thu night).
South Twin Sister Weather (Days 3-6):
Mild with moderate rain (total 11mm) on Sun morning, Becoming colder with a light covering of snow, mostly falling on Sun morning. Freeze-thaw conditions (max 3°C on Sat morning, min -5°C on Sun 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.