– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 pm Fri 26 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Fri 26 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Fri 26 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Fri night. Freeze-thaw conditions (max 1°C on Mon afternoon, min -8°C on Fri night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Mild temperatures (max 8°C on Tue night, min 1°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 1 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | | | | | | | | | | | | |  | |
snow shwrs | some clouds | cloudy | some clouds | some clouds | cloudy | some clouds | some clouds | some clouds | some clouds | cloudy | some clouds | some clouds | cloudy | some clouds | some clouds | cloudy | cloudy | light snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -8 | -8 | -7 | -6 | -4 | -3 | 0 | 0 | 1 | 5 | 6 | 6 | 8 | 8 | 8 | 8 | 6 | 3 | 1 |
min °C | -8 | -8 | -8 | -7 | -5 | -3 | -3 | 0 | 0 | 1 | 5 | 6 | 6 | 8 | 8 | 7 | 5 | 2 | 0 |
-15 | -8 | -12 | -10 | -9 | -7 | -6 | -2 | -2 | 1 | 3 | 5 | 5 | 8 | 6 | 5 | 2 | -3 | -4 | |
150 | 250 | 350 | 0 | 400 | 800 | 850 | 1400 | 1550 | 2400 | 2500 | 2500 | 2650 | 2900 | 3000 | 3050 | 2700 | 2100 | 1450 | |
Cloud base (m) | 600 | 600 | 600 | 650 | 650 | 800 | 900 | 950 | 750 | 800 | 2450 | 900 | 2550 | 2750 | 600 | 5450 | 4650 | 550 | 600 |
 | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — |
 | — | — | 4:17 | — | — | 4:17 | — | — | 4:19 | — | — | 4:20 | — | — | 4:21 | — | — | 4:22 | — |
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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 night. Freeze-thaw conditions (max 1°C on Mon afternoon, min -8°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Mild temperatures (max 8°C on Tue night, min 1°C on Mon night). 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.