– Lat/Long: 48.70° N 121.99° W
Twin Sisters Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Sat 19 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sat 19 Sep Local Time
Updates in:
Update imminent hr min s
3 Twin Sisters Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Very mild (max 15°C on Sun afternoon, min 6°C on Tue morning). Wind will be generally light. | Days 5–7 Weather SummaryMild with moderate rain (total 17mm) on Thu night, Becoming colder with a light covering of snow, mostly falling on Thu night. Mild temperatures (max 7°C on Wed afternoon, min 1°C on Fri morning). Wind will be generally light. | |||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | |  | |  | | |  |  | | |  | |  | |
clear | clear | clear | clear | some clouds | clear | some clouds | clear | clear | rain shwrs | rain shwrs | rain shwrs | rain shwrs | light rain | light rain | light snow | |
Cloud base (m) | 9100 | 9350 | 6300 | 8750 | 2350 | 2000 | 1750 | 5950 | 2500 | 2200 | 550 | |||||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
mm | — | — | — | — | — | — | — | — | — | 0.4 | 0.3 | 0.7 | 0.1 | 0.2 | 0.4 | 14 |
max °C | 14 | 14 | 15 | 15 | 12 | 11 | 10 | 6 | 7 | 6 | 5 | 7 | 7 | 7 | 6 | 4 |
min °C | 14 | 13 | 14 | 14 | 10 | 10 | 7 | 6 | 7 | 5 | 4 | 6 | 6 | 6 | 6 | 2 |
chill °C | 14 | 13 | 14 | 13 | 9 | 9 | 6 | 4 | 5 | 3 | 4 | 5 | 5 | 4 | 6 | -1 |
Freezing level m | 3950 | 3950 | 4000 | 3850 | 3600 | 3450 | 3150 | 2800 | 2600 | 2300 | 2200 | 2500 | 2600 | 2600 | 2600 | 2050 |
 | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — |
 | — | — | 7:09 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:01 | — |
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Twin Sisters Mountain Weather (Days 0-3):
The weather forecast for Twin Sisters Mountain is: Mostly dry. Very mild (max 15°C on Sun afternoon, min 6°C on Tue morning). Wind will be generally light.
Twin Sisters Mountain Weather (Days 3-6):
Mild with moderate rain (total 17mm) on Thu night, Becoming colder with a light covering of snow, mostly falling on Thu night. Mild temperatures (max 7°C on Wed afternoon, min 1°C on Fri morning). Wind will be generally light.
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 |
|---|---|---|---|---|---|
SHIP1475 | |||||
 | |||||
SHIP3541 | |||||
SHIP9365 | |||||
SHIP4884 | |||||
SHIP8218 | |||||
SHIP8979 |
* 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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