– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Sat 06 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sat 06 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sat 06 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA heavy fall of snow, heaviest during Mon afternoon. Freeze-thaw conditions (max 1°C on Mon afternoon, min -7°C on Mon night). Winds increasing (light winds from the WSW on Sat night, gales from the WSW by Mon afternoon). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max 0°C on Thu night, min -9°C on Wed morning). Winds decreasing (severe gales from the WSW on Tue night, light winds from the WSW by Thu afternoon). | |||||||||||||||||
Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  | | | |  | |  |  | |  |  | |  | |
light snow | mod. snow | light snow | light snow | light snow | mod. snow | light snow | mod. snow | mod. snow | some clouds | mod. snow | snow shwrs | snow shwrs | snow shwrs | some clouds | cloudy | cloudy | heavy snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
5 | 6 | 5 | 5 | 2 | 8 | 3 | 7 | 7 | — | 6 | 6 | 2 | 1 | — | — | — | 12 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -6 | -6 | -4 | -3 | -3 | -4 | 0 | 1 | -6 | -5 | -2 | -3 | -8 | -8 | -7 | -6 | -4 | 0 |
min°C | -6 | -6 | -6 | -4 | -4 | -5 | -2 | -1 | -7 | -5 | -4 | -8 | -9 | -8 | -8 | -7 | -5 | -4 |
-17 | -16 | -14 | -13 | -13 | -13 | -10 | -11 | -18 | -12 | -13 | -18 | -17 | -16 | -16 | -13 | -8 | -8 | |
1300 | 1250 | 1300 | 1400 | 1600 | 1500 | 1750 | 2300 | 1150 | 1250 | 1000 | 1250 | 850 | 750 | 400 | 700 | 1050 | 1150 | |
Cloud base (m) | 600 | 600 | 600 | 600 | 600 | 600 | 550 | 500 | 600 | 800 | 1400 | 550 | 750 | 650 | 600 | 600 | 2550 | 600 |
 | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — |
 | — | 4:12 | — | — | 4:12 | — | — | 4:10 | — | — | 4:10 | — | — | 4:10 | — | — | 4:10 | — |
Loading...
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A heavy fall of snow, heaviest during Mon afternoon. Freeze-thaw conditions (max 1°C on Mon afternoon, min -7°C on Mon night). Winds increasing (light winds from the WSW on Sat night, gales from the WSW by Mon afternoon).
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max 0°C on Thu night, min -9°C on Wed morning). Winds decreasing (severe gales from the WSW on Tue night, light winds from the WSW by Thu afternoon).
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.