– Lat/Long: 48.70° N 121.99° W
Twin Sisters Mountain
Weather Forecast, United StatesIssued: 9 pm Tue 16 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Tue 16 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Tue 16 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 10mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Fri afternoon. Freeze-thaw conditions (max 3°C on Tue night, min -6°C on Tue night). Winds decreasing (severe gales from the WSW on Tue night, light winds from the SW by Fri afternoon). | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Sat night. Temperatures will be below freezing (max -3°C on Sat afternoon, min -6°C on Fri night). Winds increasing (light winds from the WSW on Fri night, near gales from the SSW by Sat night). | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | | |  |  | | | | | | | | | | |
mod. snow | light snow | mod. snow | light snow | light snow | light snow | mod. snow | mod. snow | heavy snow | heavy snow | light snow | mod. snow | heavy snow | heavy snow | mod. snow | mod. snow | light snow | light snow | mod. snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
7 | 5 | 6 | 5 | 3 | 4 | 9 | 10 | 12 | 11 | 4 | 7 | 25 | 17 | 9 | 10 | 3 | 5 | 10 | |
10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 3 | -5 | -4 | -3 | -2 | 0 | -3 | -6 | -5 | -5 | -4 | -3 | -3 | -3 | -4 | -4 | -4 | -4 | -5 |
min°C | -6 | -5 | -5 | -4 | -3 | 0 | -6 | -6 | -6 | -6 | -5 | -4 | -4 | -4 | -4 | -5 | -5 | -4 | -6 |
-17 | -14 | -13 | -12 | -9 | -7 | -15 | -13 | -13 | -14 | -13 | -12 | -12 | -11 | -11 | -12 | -13 | -13 | -15 | |
2050 | 800 | 850 | 1000 | 1050 | 1450 | 650 | 650 | 700 | 450 | 750 | 850 | 950 | 850 | 900 | 750 | 800 | 850 | 650 | |
Cloud base (m) | 450 | 600 | 600 | 550 | 500 | 500 | 550 | 650 | 550 | 550 | 550 | 550 | 550 | 550 | 550 | 550 | 550 | 550 | 550 |
 | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:58 | — | — | 7:58 | — | — |
 | — | — | 4:12 | — | — | 4:12 | — | — | 4:13 | — | — | 4:13 | — | — | 4:14 | — | — | 4:14 | — |
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Twin Sisters Mountain Weather (Days 0-3):
The weather forecast for Twin Sisters Mountain is: Moderate rain (total 10mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Fri afternoon. Freeze-thaw conditions (max 3°C on Tue night, min -6°C on Tue night). Winds decreasing (severe gales from the WSW on Tue night, light winds from the SW by Fri afternoon).
Twin Sisters Mountain Weather (Days 3-6):
A heavy fall of snow, heaviest during Sat night. Temperatures will be below freezing (max -3°C on Sat afternoon, min -6°C on Fri night). Winds increasing (light winds from the WSW on Fri night, near gales from the SSW 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.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.
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