– Lat/Long: 48.70° N 121.99° W
Twin Sisters Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 pm Fri 25 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Fri 25 Sep Local Time
Updates in:
Update imminent hr min s
3 Twin Sisters Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 6mm) at first, then becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 7°C on Sun night, min 0°C on Fri night). Winds decreasing (fresh winds from the WSW on Fri afternoon, calm by Sun morning). | Days 5–7 Weather SummaryModerate rain (total 11mm), heaviest on Tue afternoon. Freeze-thaw conditions (max 7°C on Mon night, min 0°C on Thu morning). Mainly fresh winds. | ||||||||||||||||
Fri 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | | | |  |  |  |  | | | | |
mod. rain | light snow | some clouds | rain shwrs | some clouds | clear | clear | some clouds | clear | some clouds | light rain | light rain | heavy rain | clear | clear | rain shwrs | clear | |
Cloud base (m) | 650 | 650 | 750 | 1750 | 5900 | 6000 | 6500 | 5450 | 3300 | 2250 | 800 | 600 | 650 | 850 | 1900 | ||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 6 | — | — | 0.2 | — | — | — | — | — | — | 0.1 | 0.4 | 10 | — | — | 0.1 | — |
max °C | 3 | 2 | 1 | 3 | 5 | 5 | 6 | 7 | 4 | 6 | 7 | 6 | 5 | 5 | 3 | 3 | 3 |
min °C | 2 | 0 | 0 | 3 | 4 | 5 | 6 | 5 | 4 | 6 | 6 | 5 | 5 | 3 | 2 | 3 | 2 |
chill °C | -4 | -4 | -3 | 3 | 3 | 5 | 6 | 3 | 1 | 4 | 3 | 0 | 0 | 0 | 0 | 1 | 0 |
Freezing level m | 1900 | 1550 | 1650 | 2200 | 2600 | 2600 | 2600 | 2500 | 2450 | 2700 | 3200 | 2950 | 2400 | 2150 | 1800 | 2000 | 1850 |
 | — | — | 6:58 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — |
 | 7:00 | — | — | 6:58 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — |
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Twin Sisters Mountain Weather (Days 0-3):
The weather forecast for Twin Sisters Mountain is: Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 7°C on Sun night, min 0°C on Fri night). Winds decreasing (fresh winds from the WSW on Fri afternoon, calm by Sun morning).
Twin Sisters Mountain Weather (Days 3-6):
Moderate rain (total 11mm), heaviest on Tue afternoon. Freeze-thaw conditions (max 7°C on Mon night, min 0°C on Thu morning). Mainly fresh winds.
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 |
|---|---|---|---|---|---|
SHIP4367 | |||||
 | |||||
Bellingham Airport |  | ||||
SHIP8425 | |||||
SHIP10598 | |||||
SHIP5397 | |||||
SHIP3463 | |||||
SHIP2608 |
* 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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