– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Wed 27 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Wed 27 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Wed 27 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 10°C on Wed night, min -3°C on Fri night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 8°C on Mon night, min -1°C on Sat afternoon). Wind will be generally light. | ||||||||||||||||
Wed 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 1 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  |  | | | | |  | | | | | | |
clear | clear | clear | rain shwrs | some clouds | cloudy | snow shwrs | clear | clear | clear | clear | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | |
— | — | — | 0.5 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 9 | 10 | 9 | 10 | 10 | 2 | 0 | -1 | -2 | 1 | 1 | 1 | 3 | 4 | 5 | 7 | 8 |
min °C | 9 | 10 | 9 | 10 | 4 | 1 | -1 | -3 | -3 | -1 | 0 | 0 | 2 | 3 | 4 | 6 | 7 |
9 | 9 | 8 | 8 | 1 | -2 | -5 | -6 | -6 | -4 | -3 | -3 | -1 | 0 | 1 | 6 | 7 | |
3800 | 3800 | 3650 | 3700 | 3450 | 2300 | 2000 | 1550 | 1450 | 2250 | 2200 | 2350 | 2800 | 2850 | 3100 | 3200 | 3200 | |
Cloud base (m) | 1850 | 9500 | 600 | 650 | 8350 | 650 | 900 | 2000 | 6550 | 2950 | |||||||
 | — | — | 5:11 | — | — | 5:11 | — | — | 5:11 | — | — | 5:09 | — | — | 5:09 | — | — |
 | — | 8:57 | — | — | 8:58 | — | — | 8:59 | — | — | 9:00 | — | — | 9:00 | — | — | 9:01 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A dusting of new snow. Freeze-thaw conditions (max 10°C on Wed night, min -3°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 8°C on Mon night, min -1°C on Sat afternoon). 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.