– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 pm Tue 25 Nov Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Tue 25 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Tue 25 Nov 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 Thu afternoon. Temperatures will be below freezing (max 0°C on Wed afternoon, min -4°C on Tue afternoon). Winds decreasing (fresh winds from the S on Wed night, calm by Thu night). | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 1°C on Sun night, min -3°C on Sat morning). Winds increasing (calm on Sat night, fresh winds from the NW by Sun night). | ||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | |  |  | |  |  | | | | | | |
mod. snow | some clouds | cloudy | cloudy | light snow | light snow | mod. snow | snow shwrs | clear | cloudy | cloudy | some clouds | cloudy | some clouds | cloudy | cloudy | cloudy | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
7 | — | — | — | 5 | 4 | 7 | 1 | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -4 | -3 | -2 | 0 | -1 | -2 | -3 | -2 | -1 | 0 | -1 | -3 | -3 | -3 | -1 | 0 | 1 |
min°C | -4 | -4 | -2 | -1 | -2 | -2 | -3 | -3 | -1 | -1 | -2 | -3 | -3 | -3 | -1 | 0 | 1 |
-8 | -10 | -7 | -4 | -9 | -9 | -10 | -3 | -5 | -5 | -7 | -9 | -6 | -3 | -5 | -6 | -4 | |
1050 | 1300 | 1500 | 1800 | 1850 | 1750 | 1600 | 1450 | 1850 | 2050 | 2000 | 1550 | 1500 | 1450 | 1400 | 1350 | 1450 | |
Cloud base (m) | 600 | 800 | 650 | 750 | 2000 | 550 | 550 | 600 | 4350 | 2750 | 3400 | 900 | 900 | 850 | |||
 | — | — | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — | 7:37 | — | — | 7:37 | — | — |
 | 4:17 | — | — | 4:16 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:14 | — |
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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 Thu afternoon. Temperatures will be below freezing (max 0°C on Wed afternoon, min -4°C on Tue afternoon). Winds decreasing (fresh winds from the S on Wed night, calm by Thu night).
South Twin Sister Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 1°C on Sun night, min -3°C on Sat morning). Winds increasing (calm on Sat night, fresh winds from the NW by Sun night).
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.