– Lat/Long: 48.71° N 121.99° W
North Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 10 am Mon 21 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Mon 21 Sep Local Time
Updates in:
Update imminent hr min s
3 North Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Very mild (max 11°C on Mon morning, min 1°C on Wed morning). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 5mm) on Thu afternoon. Becoming colder with heavy fall of snow, heaviest during Fri morning. Freeze-thaw conditions (max 6°C on Sat night, min -2°C on Fri morning). Winds decreasing (fresh winds from the S on Thu afternoon, calm by Sat morning). | |||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  |  | |  |  |  |  |  |  |  | | | |  | |
clear | clear | clear | clear | some clouds | rain shwrs | some clouds | rain shwrs | cloudy | light rain | mod. rain | heavy snow | mod. snow | snow shwrs | clear | clear | some clouds | some clouds | |
Cloud base (m) | 5800 | 2100 | 2450 | 1700 | 1650 | 1800 | 6150 | 2650 | 1700 | 550 | 600 | 600 | 1750 | 8900 | 6350 | |||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | 15 | 8 | 2 | — | — | — | — |
mm | — | — | — | — | — | 0.1 | — | 0.1 | — | 0.1 | 5 | — | — | — | — | — | — | — |
max °C | 11 | 9 | 8 | 4 | 4 | 3 | 1 | 2 | 4 | 4 | 3 | 2 | -2 | -1 | -1 | 2 | 5 | 6 |
min °C | 9 | 8 | 5 | 3 | 4 | 2 | 1 | 2 | 3 | 3 | 2 | 0 | -2 | -2 | -1 | 1 | 4 | 2 |
chill °C | 7 | 6 | 2 | 0 | 1 | -2 | -3 | -3 | 0 | -1 | -4 | -4 | -7 | -9 | -6 | 1 | 2 | -4 |
Freezing level m | 3650 | 3550 | 3250 | 2750 | 2700 | 2350 | 2250 | 2400 | 2750 | 2500 | 2450 | 2200 | 1650 | 1800 | 1800 | 2450 | 2950 | 2650 |
 | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — |
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North Twin Sister Weather (Days 0-3):
The weather forecast for North Twin Sister is: Mostly dry. Very mild (max 11°C on Mon morning, min 1°C on Wed morning). Wind will be generally light.
North Twin Sister Weather (Days 3-6):
Light rain (total 5mm) on Thu afternoon. Becoming colder with heavy fall of snow, heaviest during Fri morning. Freeze-thaw conditions (max 6°C on Sat night, min -2°C on Fri morning). Winds decreasing (fresh winds from the S on Thu afternoon, calm by Sat 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 |
|---|---|---|---|---|---|
SHIP8884 | |||||
 | |||||
Bellingham Airport | | ||||
SHIP5895 | |||||
SHIP8003 | |||||
SHIP426 | |||||
SHIP9050 | |||||
SHIP3562 |
* 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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