– 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 SummaryMild with heavy rain (total 22mm), heaviest during Fri morning. Becoming colder with a moderate fall of snow heaviest on Fri afternoon. Freeze-thaw conditions (max 6°C on Thu afternoon, min -3°C on Fri night). Winds decreasing (strong winds from the S on Thu night, calm by Sat night). | Days 5–7 Weather SummaryMild with moderate rain (total 18mm) on Tue afternoon, Becoming colder with a light covering of snow, mostly falling on Tue afternoon. Freeze-thaw conditions (max 3°C on Sun afternoon, min -2°C on Tue night). Winds increasing (light winds from the W on Sun afternoon, strong winds from the SSW 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 | snow shwrs | light snow | snow shwrs | some clouds | some clouds | cloudy | clear | clear | some clouds | some clouds | some clouds | light rain | mod. rain | snow shwrs | light snow | |
Cloud base (m) | 3050 | 550 | 600 | 650 | 600 | 800 | 1650 | 6450 | 4600 | 6500 | 2250 | 750 | 550 | 550 | 600 | ||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | 1 | 5 | 6 | — | — | — | — | — | — | — | — | — | — | 2 | 3 |
mm | 0.1 | 12 | 10 | — | — | — | — | — | — | — | — | — | — | 1.4 | 8 | 8 | — |
max °C | 6 | 5 | 2 | 1 | -2 | -2 | 1 | 2 | 2 | 3 | 3 | 2 | 2 | 3 | 3 | 2 | -1 |
min °C | 5 | 3 | 2 | -1 | -3 | -3 | 0 | 1 | 2 | 3 | 2 | 2 | 2 | 3 | 3 | -1 | -2 |
chill °C | 1 | -2 | -4 | -8 | -9 | -8 | -3 | 1 | 0 | 1 | 0 | -1 | -2 | -2 | -3 | -9 | -9 |
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: Mild with heavy rain (total 22mm), heaviest during Fri morning. Becoming colder with a moderate fall of snow heaviest on Fri afternoon. Freeze-thaw conditions (max 6°C on Thu afternoon, min -3°C on Fri night). Winds decreasing (strong winds from the S on Thu night, calm by Sat night).
North Twin Sister Weather (Days 3-6):
Mild with moderate rain (total 18mm) on Tue afternoon, Becoming colder with a light covering of snow, mostly falling on Tue afternoon. Freeze-thaw conditions (max 3°C on Sun afternoon, min -2°C on Tue night). Winds increasing (light winds from the W on Sun afternoon, strong winds from the SSW by Tue morning).
This table gives the weather forecast for North Twin Sister at the specific elevation of 2024 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 | | ||||
SHIP7503 | |||||
SHIP9450 | |||||
SHIP2863 | |||||
SHIP6660 | |||||
SHIP3507 |
* 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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