– Lat/Long: 48.70° N 121.99° W
Twin Sisters Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 am Thu 08 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Thu 08 Oct Local Time
Updates in:
Update imminent hr min s
3 Twin Sisters Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 9mm) at first, then becoming colder with a dusting of snow on Fri afternoon. Freeze-thaw conditions (max 14°C on Thu morning, min -1°C on Fri night). Winds decreasing (fresh winds from the WSW on Fri morning, calm by Fri night). | Days 4–6 Weather SummaryMild with light rain (total 10mm) on Tue afternoon Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 6°C on Mon night, min -1°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the WSW by Tue night). | |||||||||||||||||
Thursday 8 | Friday 9 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | |  | | | | | | |  | |  | |
some clouds | clear | rain shwrs | rain shwrs | snow shwrs | some clouds | some clouds | rain shwrs | clear | clear | clear | clear | clear | some clouds | some clouds | light rain | light rain | mod. snow | |
Cloud base (m) | 8400 | 9300 | 750 | 550 | 600 | 650 | 750 | 900 | 9200 | 3250 | 1500 | 800 | 600 | |||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 9 |
mm | — | — | 2 | 7 | — | — | — | 0.1 | — | — | — | — | — | — | — | 0.1 | 5 | 4 |
max °C | 14 | 13 | 11 | 4 | 2 | 0 | 0 | 3 | 3 | 2 | 4 | 5 | 4 | 5 | 6 | 6 | 5 | 4 |
min °C | 14 | 13 | 6 | 3 | 1 | -1 | -1 | 1 | 2 | 2 | 4 | 4 | 4 | 5 | 6 | 6 | 5 | -1 |
chill °C | 14 | 12 | 2 | -1 | -2 | -1 | -4 | -2 | -1 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | -6 |
Freezing level m | 3850 | 3700 | 2850 | 1950 | 1600 | 1400 | 1450 | 1850 | 1900 | 1950 | 2300 | 3250 | 3600 | 3300 | 2850 | 2500 | 2400 | 1350 |
 | 7:16 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:24 | — | — |
 | — | 6:32 | — | — | 6:30 | — | — | 6:29 | — | — | 6:27 | — | — | 6:24 | — | — | 6:22 | — |
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Twin Sisters Mountain Weather (Days 0-3):
The weather forecast for Twin Sisters Mountain is: Light rain (total 9mm) at first, then becoming colder with a dusting of snow on Fri afternoon. Freeze-thaw conditions (max 14°C on Thu morning, min -1°C on Fri night). Winds decreasing (fresh winds from the WSW on Fri morning, calm by Fri night).
Twin Sisters Mountain Weather (Days 3-6):
Mild with light rain (total 10mm) on Tue afternoon Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 6°C on Mon night, min -1°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the WSW by Tue 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 |
|---|---|---|---|---|---|
SHIP1355 | |||||
 | |||||
SHIP10407 | |||||
SHIP4705 | |||||
SHIP5933 | |||||
SHIP10974 | |||||
SHIP5559 |
* 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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