– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 pm Sun 28 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Sun 28 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Sun 28 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Freeze-thaw conditions (max 8°C on Tue afternoon, min -2°C on Sun afternoon). Wind will be generally light. | Days 5–7 Weather SummaryDrizzle at first, then turning colder with dusting of snow on Fri night. Freeze-thaw conditions (max 7°C on Wed afternoon, min -1°C on Thu night). Wind will be generally light. | ||||||||||||||||
Sun 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 1 | Friday 2 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | |  | | | | |  | | |  |  |  | | |
cloudy | some clouds | cloudy | cloudy | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | cloudy | cloudy | cloudy | light snow | light rain | rain shwrs | light snow | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1.5 | 0.1 | 0.3 | |
max °C | -1 | 0 | 1 | 2 | 6 | 7 | 8 | 7 | 7 | 7 | 7 | 4 | 3 | 2 | 3 | 5 | 4 |
min °C | -2 | -1 | 1 | 2 | 3 | 7 | 7 | 7 | 6 | 7 | 5 | 3 | 2 | -1 | 3 | 4 | 1 |
-5 | -4 | -2 | 0 | 1 | 6 | 6 | 5 | 5 | 7 | 3 | 0 | -1 | -4 | 0 | 2 | -4 | |
950 | 1150 | 1900 | 2150 | 3050 | 3050 | 3200 | 3000 | 3000 | 3150 | 3000 | 2400 | 1950 | 1650 | 2000 | 2200 | 1700 | |
Cloud base (m) | 800 | 800 | 950 | 2100 | 6150 | 750 | 6150 | 600 | 5050 | 4650 | 2800 | 550 | 600 | 550 | 650 | ||
 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — |
 | 4:17 | — | — | 4:19 | — | — | 4:20 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Freeze-thaw conditions (max 8°C on Tue afternoon, min -2°C on Sun afternoon). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Drizzle at first, then turning colder with dusting of snow on Fri night. Freeze-thaw conditions (max 7°C on Wed afternoon, min -1°C on Thu 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.