– Lat/Long: 48.71° N 121.99° W
North Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 4 pm Thu 24 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Thu 24 Sep Local Time
Updates in:
Update imminent hr min s
3 North Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 26mm), mostly on Fri morning. Becoming colder with a light covering of snow ,mostly falling on Fri afternoon. Freeze-thaw conditions (max 10°C on Thu afternoon, min 0°C on Fri night). Winds decreasing (fresh winds from the S on Thu night, calm by Sat morning). | Days 5–7 Weather SummaryHeavy rain (total 21mm), heaviest during Tue afternoon. Later becoming colder with a dusting of snow on Tue night. Mild temperatures (max 6°C on Sun afternoon, min 1°C on Tue night). Winds increasing (calm on Sun afternoon, strong winds from the S by Tue morning). | ||||||||||||||||
Thu 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | |  |  | |  | | |  |  | |  | |
light rain | heavy rain | rain shwrs | light snow | snow shwrs | some clouds | rain shwrs | cloudy | clear | clear | some clouds | some clouds | some clouds | light rain | mod. rain | rain shwrs | light snow | |
Cloud base (m) | 3050 | 550 | 600 | 650 | 600 | 800 | 1650 | 6450 | 4600 | 6500 | 2250 | 750 | 550 | 550 | 600 | ||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | 3 | 5 | — | — | — | — | — | — | — | — | — | — | — | 2 |
mm | 0.1 | 12 | 12 | 2 | — | — | 0.1 | — | — | — | — | — | — | 1.4 | 8 | 12 | — |
max °C | 10 | 9 | 5 | 5 | 2 | 1 | 4 | 4 | 4 | 6 | 6 | 4 | 5 | 5 | 5 | 5 | 2 |
min °C | 9 | 6 | 5 | 1 | 0 | 0 | 3 | 4 | 4 | 6 | 5 | 4 | 5 | 4 | 4 | 2 | 1 |
chill °C | 9 | 3 | 1 | -4 | -4 | -2 | 1 | 4 | 4 | 5 | 4 | 2 | 3 | -1 | -2 | -4 | -4 |
Freezing level m | 2850 | 2600 | 2300 | 1800 | 1650 | 1600 | 2150 | 2350 | 2450 | 2550 | 2500 | 2350 | 2450 | 3000 | 2950 | 1950 | 1700 |
 | — | — | 6:58 | — | — | 6:58 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — |
 | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — |
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North Twin Sister Weather (Days 0-3):
The weather forecast for North Twin Sister is: Heavy rain (total 26mm), mostly on Fri morning. Becoming colder with a light covering of snow ,mostly falling on Fri afternoon. Freeze-thaw conditions (max 10°C on Thu afternoon, min 0°C on Fri night). Winds decreasing (fresh winds from the S on Thu night, calm by Sat morning).
North Twin Sister Weather (Days 3-6):
Heavy rain (total 21mm), heaviest during Tue afternoon. Later becoming colder with a dusting of snow on Tue night. Mild temperatures (max 6°C on Sun afternoon, min 1°C on Tue night). Winds increasing (calm on Sun afternoon, strong winds from the S by Tue morning).
This table gives the weather forecast for North Twin Sister at the specific elevation of 1500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of North Twin Sister. 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 |
|---|---|---|---|---|---|
SHIP6461 | |||||
 | |||||
Bellingham Airport |  | ||||
SHIP5108 | |||||
SHIP7503 | |||||
SHIP3120 | |||||
SHIP3606 | |||||
SHIP6660 |
* 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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