– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Sun 24 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Sun 24 May Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sun 24 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Mon afternoon. Freeze-thaw conditions (max 9°C on Wed afternoon, min -3°C on Mon night). Winds decreasing (near gales from the S on Mon morning, calm by Wed afternoon). | Days 5–7 Weather SummaryA light covering of new snow mostly falling on Fri afternoon. Freeze-thaw conditions (max 10°C on Thu afternoon, min -3°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | | |  |  | |  | | | |  | | | |  |  | |
cloudy | light snow | light snow | light snow | light snow | cloudy | rain shwrs | clear | clear | some clouds | clear | clear | some clouds | light rain | light snow | light snow | light snow | some clouds | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | 1 | 4 | 2 | 2 | — | — | — | — | — | — | — | — | — | 2 | 4 | 1 | — | — | |
— | — | — | — | — | — | 0.2 | — | — | — | — | — | — | 0.2 | — | — | — | — | — | |
max °C | 5 | 0 | -2 | -2 | -2 | 1 | 5 | 6 | 9 | 9 | 8 | 10 | 10 | 4 | 2 | 0 | -3 | -2 | -1 |
min °C | 2 | -1 | -2 | -3 | -2 | -1 | 2 | 5 | 9 | 8 | 8 | 9 | 6 | 2 | 1 | -3 | -3 | -3 | -2 |
-5 | -10 | -10 | -3 | -6 | -5 | -2 | 3 | 9 | 8 | 8 | 8 | 6 | 0 | -3 | -7 | -6 | -7 | -4 | |
2650 | 1900 | 1900 | 1650 | 1750 | 2350 | 3600 | 3950 | 3950 | 3800 | 3700 | 3750 | 3800 | 2700 | 2350 | 1800 | 1400 | 1800 | 1900 | |
Cloud base (m) | 3150 | 1950 | 550 | 650 | 550 | 650 | 5950 | 750 | 1600 | 7000 | 5100 | 1600 | 600 | 600 | 600 | 800 | 1600 | ||
 | — | 5:15 | — | — | 5:13 | — | — | 5:13 | — | — | 5:11 | — | — | 5:11 | — | — | 5:11 | — | — |
 | — | — | — | 8:53 | — | — | 8:54 | — | — | 8:57 | — | — | 8:58 | — | — | 8:59 | — | — | 9:00 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A light covering of new snow mostly falling on Mon afternoon. Freeze-thaw conditions (max 9°C on Wed afternoon, min -3°C on Mon night). Winds decreasing (near gales from the S on Mon morning, calm by Wed afternoon).
South Twin Sister Weather (Days 3-6):
A light covering of new snow mostly falling on Fri afternoon. Freeze-thaw conditions (max 10°C on Thu afternoon, min -3°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.