– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Wed 12 Jun Local TimeUpdates in: hr min sUpdate imminent
South Twin SisterWeather Forecast, United States
Issued: 4 am Wed 12 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Wed 12 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA light covering of new snow mostly falling on Fri afternoon. Freeze-thaw conditions (max 5°C on Thu afternoon, min -4°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummaryA light covering of new snow mostly falling on Sat morning. Freeze-thaw conditions (max 4°C on Mon afternoon, min -5°C on Sat morning). Wind will be generally light. | |||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  |  |  |  |  |  | | | | | | | | | |
clear | clear | clear | clear | some clouds | some clouds | cloudy | snow shwrs | light snow | mod. snow | snow shwrs | light snow | cloudy | cloudy | some clouds | clear | some clouds | some clouds | |
km/h | ||||||||||||||||||
Wave Height Map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | 2.0 | 4 | 6 | 2.0 | 1.0 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -1 | 2 | 3 | 4 | 5 | 4 | -2 | -1 | -1 | -5 | -4 | -3 | -2 | -1 | 0 | 1 | 4 | 4 |
min°C | -2 | 1 | 2 | 3 | 5 | -2 | -3 | -2 | -4 | -5 | -4 | -4 | -3 | -2 | -1 | 0 | 3 | 4 |
-7 | -3 | -1 | 2 | 2 | -6 | -8 | -7 | -8 | -11 | -10 | -9 | -3 | -2 | -5 | -4 | 1 | 3 | |
2000 | 2400 | 2750 | 3050 | 2950 | 2200 | 1700 | 2000 | 1550 | 1350 | 1550 | 1450 | 1450 | 1900 | 2200 | 2500 | 2800 | 3100 | |
Cloud base (m) | 900 | 2050 | 6800 | 8650 | 6800 | 1950 | 800 | 700 | 650 | 600 | 650 | 750 | 600 | 750 | 1650 | 950 | 1900 | 8800 |
 | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — |
 | — | — | 9:10 | — | — | 9:10 | — | — | 9:12 | — | — | 9:12 | — | — | 9:13 | — | — | 9:13 |
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A light covering of new snow mostly falling on Fri afternoon. Freeze-thaw conditions (max 5°C on Thu afternoon, min -4°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A light covering of new snow mostly falling on Sat morning. Freeze-thaw conditions (max 4°C on Mon afternoon, min -5°C on Sat morning). 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.
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