– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Mon 06 May Local TimeUpdates in: hr min sUpdate imminent
South Twin SisterWeather Forecast, United States
Issued: 4 am Mon 06 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Mon 06 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 Mon morning. Freeze-thaw conditions (max 9°C on Wed night, min -3°C on Mon night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Very mild (max 16°C on Fri night, min 10°C on Thu morning). Wind will be generally light. | |||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  |  | | |  | | | | | | | |  | |
mod. snow | light snow | light snow | light snow | snow shwrs | clear | some clouds | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | |
km/h | ||||||||||||||||||
Wave Height Map |  |  |  |  |  |  | ||||||||||||
8 | 4 | 5 | 4 | 1.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -2 | -2 | -2 | -3 | 0 | -1 | 0 | 4 | 9 | 10 | 13 | 14 | 14 | 15 | 16 | 15 | 15 | 15 |
min°C | -2 | -2 | -3 | -3 | -1 | -1 | -1 | 2 | 4 | 10 | 12 | 13 | 14 | 15 | 15 | 14 | 15 | 12 |
-8 | -5 | -8 | -8 | -5 | -4 | -3 | 1 | 3 | 9 | 12 | 13 | 14 | 15 | 15 | 14 | 15 | 11 | |
1150 | 1200 | 950 | 1150 | 1450 | 1150 | 1500 | 3250 | 3350 | 3550 | 3750 | 3800 | 3750 | 3900 | 3950 | 3800 | 3700 | 3500 | |
Cloud base (m) | 550 | 550 | 600 | 600 | 750 | 1000 | 900 | 1000 | 9900 | 9350 | 9450 | 9650 | 9200 | |||||
 | 5:37 | — | — | 5:37 | — | — | 5:35 | — | — | 5:33 | — | — | 5:31 | — | — | 5:31 | — | — |
 | — | — | 8:30 | — | — | 8:31 | — | — | 8:34 | — | — | 8:35 | — | — | 8:36 | — | — | 8:37 |
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A heavy fall of snow, heaviest during Mon morning. Freeze-thaw conditions (max 9°C on Wed night, min -3°C on Mon night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 16°C on Fri night, min 10°C on Thu 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.
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