– Lat/Long: 48.70° N 121.99° W
Twin Sisters Mountain
Weather Forecast, United StatesIssued: 3 pm Sat 13 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Sat 13 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Sat 13 Dec Local Time
Updates in:
Update imminent hr min s
3 Twin Sisters Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMild with heavy rain (total 56mm), heaviest during Sun night. Becoming colder with a moderate fall of snow heaviest on Mon afternoon. Freeze-thaw conditions (max 9°C on Sat afternoon, min -4°C on Mon night). Mainly gales. | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 1°C on Tue afternoon, min -6°C on Tue night). Winds decreasing (gales from the W on Tue night, light winds from the WSW by Fri morning). | ||||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  |  |  |  | |  | | |  | | |  | |
cloudy | light rain | light rain | light rain | heavy rain | heavy rain | mod. snow | light snow | light snow | light snow | heavy snow | mod. snow | mod. snow | mod. snow | light snow | light snow | snow shwrs | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | 7 | 4 | 4 | 2 | 14 | 6 | 7 | 8 | 4 | 4 | 16 | |
— | 1.5 | 0.4 | 1.4 | 32 | 18 | 3 | — | — | — | — | — | — | — | — | — | — | |
max°C | 9 | 7 | 3 | 3 | 5 | 5 | 5 | -3 | -1 | 1 | 1 | -5 | -5 | -2 | -3 | -3 | -4 |
min°C | 8 | 2 | 3 | 3 | 4 | 5 | -1 | -4 | -2 | 0 | -6 | -5 | -5 | -4 | -3 | -3 | -6 |
4 | -4 | -3 | -2 | -2 | -1 | -8 | -11 | -9 | -7 | -17 | -15 | -13 | -12 | -12 | -10 | -14 | |
2800 | 2250 | 1950 | 2100 | 2500 | 2550 | 2300 | 950 | 1100 | 1550 | 1650 | 750 | 800 | 950 | 1050 | 950 | 600 | |
Cloud base (m) | 6500 | 2450 | 650 | 750 | 550 | 550 | 500 | 650 | 600 | 500 | 450 | 600 | 550 | 550 | 500 | 500 | 500 |
 | — | — | 7:52 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:56 | — | — |
 | 4:10 | — | — | 4:10 | — | — | 4:12 | — | — | 4:12 | — | — | 4:12 | — | — | 4:12 | — |
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Twin Sisters Mountain Weather (Days 0-3):
The weather forecast for Twin Sisters Mountain is: Mild with heavy rain (total 56mm), heaviest during Sun night. Becoming colder with a moderate fall of snow heaviest on Mon afternoon. Freeze-thaw conditions (max 9°C on Sat afternoon, min -4°C on Mon night). Mainly gales.
Twin Sisters Mountain Weather (Days 3-6):
A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 1°C on Tue afternoon, min -6°C on Tue night). Winds decreasing (gales from the W on Tue night, light winds from the WSW by Fri morning).
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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