– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 am Fri 27 Feb Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Fri 27 Feb Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Fri 27 Feb Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Temperatures will be below freezing (max 0°C on Sat afternoon, min -5°C on Fri morning). Winds decreasing (strong winds from the W on Fri afternoon, calm by Sat night). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -1°C on Mon morning, min -7°C on Wed afternoon). Mainly strong winds. | |||||||||||||||||
Friday 27 | Saturday 28 | Sunday 1 | Monday 2 | Tuesday 3 | Wednesday 4 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  | | | | | | | |  |  | | | | |
cloudy | cloudy | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | cloudy | light snow | heavy snow | light snow | light snow | heavy snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 23 | 5 | 2 | 13 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -5 | -5 | -3 | -2 | 0 | 0 | 0 | 0 | 0 | -1 | -1 | -1 | -1 | -4 | -4 | -6 | -6 | -7 |
min °C | -5 | -5 | -4 | -3 | -1 | 0 | 0 | 0 | -1 | -1 | -1 | -1 | -2 | -4 | -5 | -6 | -7 | -7 |
-14 | -14 | -12 | -9 | -6 | -2 | -2 | -3 | -8 | -8 | -7 | -7 | -11 | -13 | -13 | -14 | -15 | -16 | |
1100 | 1100 | 950 | 1150 | 1450 | 2050 | 1950 | 2000 | 2000 | 1900 | 1950 | 1800 | 2050 | 1500 | 1450 | 1150 | 1250 | 1100 | |
Cloud base (m) | 650 | 600 | 650 | 600 | 750 | 600 | 8700 | 1750 | 5300 | 5600 | 1500 | 550 | 600 | 600 | 600 | |||
 | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — |
 | — | 5:47 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:54 | — | — | 5:55 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Temperatures will be below freezing (max 0°C on Sat afternoon, min -5°C on Fri morning). Winds decreasing (strong winds from the W on Fri afternoon, calm by Sat night).
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -1°C on Mon morning, min -7°C on Wed afternoon). Mainly strong winds.
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.