– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Thu 14 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Thu 14 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Thu 14 May 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 Fri afternoon. Freeze-thaw conditions (max 2°C on Thu afternoon, min -3°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Freeze-thaw conditions (max 4°C on Mon afternoon, min -2°C on Sun morning). Wind will be generally light. | |||||||||||||||||
Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | | | |  |  |  | | |  |  |  | | | |
snow shwrs | light snow | mod. snow | light snow | mod. snow | mod. snow | light snow | snow shwrs | some clouds | cloudy | some clouds | some clouds | some clouds | rain shwrs | rain shwrs | light rain | rain shwrs | rain shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
1 | 2 | 9 | 3 | 6 | 8 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | 0.3 | 0.1 | 0.1 | 1.2 | 0.5 | |
max °C | 1 | 2 | 0 | -2 | -1 | -2 | -2 | -1 | 0 | -1 | 0 | 1 | 1 | 4 | 3 | 2 | 4 | 4 |
min °C | 1 | 1 | -2 | -2 | -2 | -3 | -2 | -2 | -2 | -2 | 0 | 0 | 0 | 3 | 2 | 2 | 3 | 3 |
-2 | -3 | -7 | -5 | -8 | -7 | -6 | -5 | -4 | -2 | 0 | -2 | -2 | 3 | 1 | 2 | 1 | 1 | |
1650 | 1700 | 1350 | 1200 | 1300 | 1100 | 1150 | 1450 | 1300 | 1300 | 1600 | 1600 | 1650 | 2050 | 2000 | 1950 | 2150 | 2800 | |
Cloud base (m) | 800 | 1500 | 600 | 600 | 550 | 600 | 600 | 700 | 600 | 600 | 700 | 1700 | 1650 | 2000 | 1900 | 850 | 850 | 1950 |
 | 5:28 | — | — | 5:26 | — | — | 5:24 | — | — | 5:24 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | — | 8:39 | — | — | 8:42 | — | — | 8:43 | — | — | 8:44 | — | — | 8:45 | — | — | 8:46 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A heavy fall of snow, heaviest during Fri afternoon. Freeze-thaw conditions (max 2°C on Thu afternoon, min -3°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 2mm), mostly falling on Tue afternoon. Freeze-thaw conditions (max 4°C on Mon afternoon, min -2°C on Sun morning). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 1500 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.