– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Tue 02 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Tue 02 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Tue 02 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 2mm) at first, then becoming colder with a dusting of snow on Wed afternoon. Freeze-thaw conditions (max 9°C on Tue afternoon, min -3°C on Fri morning). Wind will be generally light. | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Fri night. Freeze-thaw conditions (max 3°C on Sun night, min -5°C on Fri night). Wind will be generally light. | ||||||||||||||||
Tue 2 | Wednesday 3 | Thursday 4 | Friday 5 | Saturday 6 | Sunday 7 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | |  | | |  |  |  |  | | | | |
clear | some clouds | light rain | light snow | some clouds | some clouds | some clouds | cloudy | some clouds | light snow | heavy snow | mod. snow | snow shwrs | snow shwrs | light snow | snow shwrs | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | 1 | — | — | — | — | — | 2 | 20 | 9 | 3 | 3 | 5 | 1 | — | |
— | — | 0.8 | 1.3 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 9 | 9 | 5 | 2 | 1 | 0 | 2 | 2 | -3 | -3 | -4 | -5 | -4 | -4 | -4 | -2 | 3 |
min °C | 8 | 7 | 2 | 2 | 0 | -1 | 1 | -2 | -3 | -3 | -5 | -5 | -4 | -5 | -5 | -4 | 0 |
7 | 4 | -3 | -2 | -4 | -6 | -2 | -8 | -8 | -9 | -11 | -9 | -8 | -10 | -11 | -10 | -3 | |
3200 | 3100 | 2500 | 2450 | 2100 | 2100 | 2550 | 2050 | 1600 | 1650 | 1350 | 1350 | 1600 | 1400 | 1400 | 1800 | 2700 | |
Cloud base (m) | 2900 | 2400 | 800 | 700 | 650 | 1900 | 2050 | 1800 | 550 | 550 | 550 | 750 | 850 | 550 | 700 | 8950 | |
 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | 9:02 | — | — | 9:04 | — | — | 9:04 | — | — | 9:05 | — | — | 9:06 | — | — | 9:07 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 2mm) at first, then becoming colder with a dusting of snow on Wed afternoon. Freeze-thaw conditions (max 9°C on Tue afternoon, min -3°C on Fri morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Fri night. Freeze-thaw conditions (max 3°C on Sun night, min -5°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.