– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Thu 30 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Thu 30 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Thu 30 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummarySome drizzle, heaviest during Fri night. Mild temperatures (max 9°C on Sun morning, min 4°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 11°C on Sun night, min 6°C on Wed morning). Wind will be generally light. | ||||||||||||||||
Thu 30 | Friday 1 | Saturday 2 | Sunday 3 | Monday 4 | Tuesday 5 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  |  | | |  | | | | | | | |
clear | some clouds | some clouds | cloudy | rain shwrs | light rain | rain shwrs | risk tstorm | clear | cloudy | clear | clear | clear | clear | clear | clear | clear | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | 0.6 | 0.1 | 0.3 | 0.2 | — | — | — | — | — | — | — | — | — | |
max °C | 5 | 6 | 4 | 5 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 10 | 11 | 11 | 8 | 9 | 9 |
min °C | 5 | 4 | 4 | 5 | 5 | 5 | 7 | 7 | 8 | 9 | 10 | 10 | 11 | 9 | 8 | 9 | 7 |
4 | 1 | 1 | 2 | 3 | 3 | 7 | 5 | 8 | 9 | 10 | 10 | 10 | 9 | 8 | 8 | 5 | |
2800 | 2750 | 2650 | 2750 | 2800 | 2900 | 3050 | 3100 | 3200 | 3300 | 3500 | 3550 | 3600 | 3700 | 3750 | 3750 | 3650 | |
Cloud base (m) | 2750 | 3100 | 2850 | 2800 | 2800 | 2900 | 2900 | 6900 | 8700 | 9300 | |||||||
 | — | — | 5:48 | — | — | 5:46 | — | — | 5:45 | — | — | 5:43 | — | — | 5:41 | — | — |
 | — | 8:21 | — | — | 8:22 | — | — | 8:23 | — | — | 8:24 | — | — | 8:25 | — | — | 8:28 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Some drizzle, heaviest during Fri night. Mild temperatures (max 9°C on Sun morning, min 4°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 11°C on Sun night, min 6°C on Wed morning). 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.