– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 am Thu 22 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Thu 22 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Thu 22 Jan 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 -1°C on Sat morning, min -4°C on Thu night). Wind will be generally light. | Days 4–6 Weather SummaryA dusting of new snow. Temperatures will be below freezing (max 0°C on Tue night, min -5°C on Mon night). Wind will be generally light. | |||||||||||||||||
Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | | | | |  |  | | | | |  |  | | | |
cloudy | cloudy | clear | clear | clear | clear | clear | clear | some clouds | some clouds | clear | clear | some clouds | some clouds | snow shwrs | snow shwrs | clear | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -2 | -3 | -3 | -3 | -3 | -2 | -1 | -1 | -1 | -2 | -2 | -3 | -3 | -4 | -4 | -4 | -2 | 0 |
min °C | -2 | -3 | -4 | -3 | -3 | -3 | -1 | -1 | -2 | -2 | -3 | -3 | -3 | -4 | -5 | -5 | -3 | -2 |
-7 | -7 | -10 | -9 | -8 | -8 | -6 | -4 | -6 | -7 | -8 | -8 | -8 | -10 | -11 | -9 | -3 | -2 | |
1750 | 1550 | 1400 | 1650 | 1600 | 1700 | 1950 | 1950 | 1900 | 1800 | 1700 | 1600 | 1550 | 1450 | 1250 | 1300 | 1450 | 1950 | |
Cloud base (m) | 5700 | 8700 | 7100 | 5050 | 1600 | 800 | 600 | 650 | ||||||||||
 | 7:48 | — | — | 7:48 | — | — | 7:47 | — | — | 7:46 | — | — | 7:43 | — | — | 7:43 | — | — |
 | — | 4:50 | — | — | 4:52 | — | — | 4:52 | — | — | 4:54 | — | — | 4:55 | — | — | 4:58 | — |
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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 -1°C on Sat morning, min -4°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A dusting of new snow. Temperatures will be below freezing (max 0°C on Tue night, min -5°C on Mon 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.