– Lat/Long: 48.70° N 121.99° W
Twin Sisters Mountain
Weather Forecast, United StatesIssued: 3 pm Mon 15 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Mon 15 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Mon 15 Dec Local Time
Updates in:
Update imminent hr min s
3 Twin Sisters Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 13mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 3°C on Tue afternoon, min -5°C on Tue night). Mainly gales. | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Fri morning. Temperatures will be below freezing (max 0°C on Sun morning, min -6°C on Thu night). Winds decreasing (near gales from the SW on Thu afternoon, light winds from the S by Sat night). | ||||||||||||||||
Mon 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | | |  | | | | | | | |  |  | |
mod. snow | mod. snow | light snow | light snow | heavy snow | mod. snow | mod. snow | light snow | light snow | light snow | mod. snow | mod. snow | light snow | mod. snow | light snow | some clouds | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
6 | 7 | 3 | 2 | 20 | 6 | 7 | 4 | 3 | 2 | 6 | 8 | 4 | 8 | 2 | — | — | |
— | — | — | 3 | 10 | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 1 | -2 | 1 | 3 | 3 | -5 | -4 | -3 | -1 | -2 | -6 | -6 | -6 | -5 | -5 | -4 | -2 |
min°C | -2 | -3 | 0 | 2 | -5 | -5 | -4 | -4 | -3 | -5 | -6 | -6 | -6 | -6 | -5 | -5 | -3 |
-9 | -10 | -7 | -6 | -16 | -15 | -12 | -12 | -10 | -15 | -16 | -13 | -12 | -14 | -10 | -11 | -6 | |
1700 | 1050 | 1400 | 1950 | 900 | 750 | 850 | 950 | 950 | 1250 | 400 | 600 | 650 | 600 | 750 | 750 | 0 | |
Cloud base (m) | 550 | 600 | 550 | 500 | 500 | 600 | 600 | 550 | 500 | 500 | 600 | 550 | 550 | 600 | 600 | 550 | 550 |
 | — | — | 7:54 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — |
 | 4:12 | — | — | 4:12 | — | — | 4:12 | — | — | 4:12 | — | — | 4:13 | — | — | 4:13 | — |
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Twin Sisters Mountain Weather (Days 0-3):
The weather forecast for Twin Sisters Mountain is: Moderate rain (total 13mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 3°C on Tue afternoon, min -5°C on Tue night). Mainly gales.
Twin Sisters Mountain Weather (Days 3-6):
A heavy fall of snow, heaviest during Fri morning. Temperatures will be below freezing (max 0°C on Sun morning, min -6°C on Thu night). Winds decreasing (near gales from the SW on Thu afternoon, light winds from the S by Sat night).
This table gives the weather forecast for Twin Sisters Mountain at the specific elevation of 1500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Twin Sisters Mountain. 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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