– Lat/Long: 48.70° N 121.99° W
Twin Sisters Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 pm Sat 26 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sat 26 Sep Local Time
Updates in:
Update imminent hr min s
3 Twin Sisters Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 17mm), heaviest on Tue morning. Mild temperatures (max 7°C on Sun afternoon, min 4°C on Sat afternoon). Winds increasing (calm on Sun morning, fresh winds from the S by Mon night). | Days 5–7 Weather SummaryHeavy rain (total 29mm), heaviest during Tue afternoon. Very mild (max 12°C on Wed night, min 6°C on Tue night). Winds increasing (calm on Wed afternoon, fresh winds from the SSW by Thu afternoon). | ||||||||||||||||
Sat 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | |  |  | |  | | | | | |  | |
rain shwrs | some clouds | some clouds | clear | some clouds | some clouds | some clouds | light rain | heavy rain | heavy rain | rain shwrs | some clouds | some clouds | some clouds | some clouds | rain shwrs | mod. rain | |
Cloud base (m) | 1700 | 6800 | 6100 | 2850 | 2600 | 850 | 550 | 550 | 800 | 1750 | 2300 | 3450 | 1950 | 1750 | 650 | ||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 0.1 | — | — | — | — | — | — | 2 | 14 | 16 | 1.5 | — | — | — | — | 1.9 | 7 |
max °C | 4 | 6 | 6 | 7 | 7 | 5 | 6 | 6 | 6 | 7 | 7 | 6 | 8 | 12 | 11 | 10 | 7 |
min °C | 4 | 5 | 6 | 7 | 6 | 5 | 6 | 4 | 5 | 7 | 6 | 6 | 8 | 10 | 10 | 8 | 6 |
chill °C | 3 | 4 | 6 | 7 | 4 | 2 | 4 | -1 | 0 | 3 | 4 | 5 | 8 | 9 | 7 | 4 | 4 |
Freezing level m | 2300 | 2700 | 2700 | 2750 | 2750 | 2300 | 2350 | 2800 | 2950 | 2850 | 2700 | 3100 | 3300 | 3450 | 3200 | 2850 | 2500 |
 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — |
 | 6:58 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — | — | 6:46 | — |
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Twin Sisters Mountain Weather (Days 0-3):
The weather forecast for Twin Sisters Mountain is: Moderate rain (total 17mm), heaviest on Tue morning. Mild temperatures (max 7°C on Sun afternoon, min 4°C on Sat afternoon). Winds increasing (calm on Sun morning, fresh winds from the S by Mon night).
Twin Sisters Mountain Weather (Days 3-6):
Heavy rain (total 29mm), heaviest during Tue afternoon. Very mild (max 12°C on Wed night, min 6°C on Tue night). Winds increasing (calm on Wed afternoon, fresh winds from the SSW by Thu afternoon).
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 |
|---|---|---|---|---|---|
 | |||||
Bellingham Airport | | ||||
SHIP7613 | |||||
SHIP4636 | |||||
SHIP6051 | |||||
SHIP6560 |
* 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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