– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Sat 25 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Sat 25 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sat 25 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. Temperatures will be below freezing (max -1°C on Sun afternoon, min -3°C on Mon night). Wind will be generally light. | Days 5–7 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 4°C on Wed afternoon, min -2°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 1 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  | |  |  | | | | | | | | |  | |
clear | clear | snow shwrs | clear | some clouds | cloudy | light snow | cloudy | light snow | some clouds | clear | clear | some clouds | cloudy | snow shwrs | some clouds | cloudy | cloudy | cloudy | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | 1 | — | — | — | 1 | — | 1 | — | — | — | — | — | 1 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -2 | -2 | -1 | -1 | -2 | -2 | -2 | -3 | -3 | -1 | 1 | 4 | 4 | 2 | 1 | 1 | 1 | 2 | 1 |
min °C | -2 | -2 | -1 | -2 | -2 | -2 | -3 | -3 | -3 | -2 | 0 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 0 |
-5 | -6 | -4 | -4 | -5 | -6 | -6 | -6 | -6 | -5 | -2 | 3 | -2 | -4 | -4 | -4 | 0 | 0 | 0 | |
1900 | 1900 | 2050 | 2000 | 1800 | 1800 | 1600 | 1500 | 1600 | 1900 | 2250 | 2800 | 2650 | 2200 | 2250 | 2250 | 2250 | 2350 | 2200 | |
Cloud base (m) | 3650 | 2900 | 2100 | 1850 | 750 | 650 | 600 | 600 | 1550 | 1550 | 2100 | 2550 | 2050 | 6600 | 1850 | 2900 | |||
 | — | 5:56 | — | — | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — |
 | — | — | — | 8:15 | — | — | 8:15 | — | — | 8:17 | — | — | 8:19 | — | — | 8:21 | — | — | 8:22 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A dusting of new snow. Temperatures will be below freezing (max -1°C on Sun afternoon, min -3°C on Mon night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A dusting of new snow. Freeze-thaw conditions (max 4°C on Wed afternoon, min -2°C on Tue 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.