– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Thu 09 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Thu 09 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Thu 09 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 5°C on Thu night, min -2°C on Sat night). Wind will be generally light. | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -2°C on Sun afternoon, min -12°C on Tue night). Winds increasing (light winds from the WNW on Sun afternoon, near gales from the SSW by Tue night). | ||||||||||||||||
Thu 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | |  | | | |  |  | |  | |  | |
clear | clear | some clouds | cloudy | cloudy | cloudy | cloudy | light snow | cloudy | some clouds | light snow | snow shwrs | light snow | light snow | mod. snow | mod. snow | heavy snow | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | 2 | — | — | 3 | 1 | 1 | 3 | 8 | 9 | 25 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 4 | 5 | 4 | 4 | 3 | 1 | -1 | -1 | -2 | -2 | -2 | -5 | -5 | -5 | -7 | -6 | -6 |
min °C | 3 | 4 | 4 | 4 | 2 | 0 | -1 | -2 | -2 | -2 | -5 | -5 | -5 | -7 | -7 | -7 | -12 |
2 | 2 | 2 | 2 | 0 | -2 | -1 | -2 | -4 | -5 | -11 | -9 | -10 | -14 | -15 | -16 | -23 | |
2700 | 2800 | 2700 | 2650 | 2450 | 2100 | 1900 | 1750 | 1700 | 1800 | 1350 | 1150 | 1300 | 1100 | 1000 | 1050 | 600 | |
Cloud base (m) | 9250 | 9150 | 3300 | 2500 | 1950 | 750 | 550 | 550 | 550 | 550 | 650 | 600 | 600 | 550 | 550 | 700 | |
 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:18 | — | — |
 | 7:50 | — | — | 7:51 | — | — | 7:52 | — | — | 7:53 | — | — | 7:55 | — | — | 7:57 | — |
Loading...
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A dusting of new snow. Freeze-thaw conditions (max 5°C on Thu night, min -2°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -2°C on Sun afternoon, min -12°C on Tue night). Winds increasing (light winds from the WNW on Sun afternoon, near gales from the SSW by Tue 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.