– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Sun 02 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sun 02 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sun 02 Aug Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA dusting of snow on Sun afternoon. Freezing level rising with drizzle on Sun afternoon. Very mild (max 15°C on Tue night, min 1°C on Sun afternoon). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 17°C on Wed afternoon, min 6°C on Fri night). Wind will be generally light. | ||||||||||||||||
Sun 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | | | | | | | | | | | | | |
snow shwrs | rain shwrs | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 1600 | 9700 | 9700 | ||||||||||||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1 | 0.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 2 | 5 | 8 | 10 | 11 | 11 | 14 | 15 | 15 | 17 | 17 | 15 | 16 | 15 | 11 | 11 | 10 |
min °C | 1 | 3 | 6 | 10 | 11 | 11 | 13 | 14 | 15 | 16 | 16 | 14 | 15 | 13 | 11 | 11 | 6 |
chill °C | -2 | 0 | 3 | 9 | 11 | 11 | 13 | 14 | 15 | 16 | 16 | 14 | 14 | 11 | 9 | 9 | 3 |
Freezing level m | 2500 | 3000 | 3550 | 3750 | 3800 | 3850 | 4250 | 4550 | 4650 | 4700 | 4700 | 4500 | 4700 | 4500 | 4050 | 3800 | 3200 |
 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:37 | — | — | 8:37 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A dusting of snow on Sun afternoon. Freezing level rising with drizzle on Sun afternoon. Very mild (max 15°C on Tue night, min 1°C on Sun afternoon). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 17°C on Wed afternoon, min 6°C on Fri night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 2134 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South 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 |
|---|---|---|---|---|---|
SHIP3223 | |||||
 | |||||
Bellingham Airport | | ||||
SHIP2100 | |||||
SHIP5675 | |||||
SHIP2481 | |||||
SHIP2424 | |||||
SHIP8517 |
* 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.