– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Thu 08 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Thu 08 May Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Thu 08 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 9°C on Fri night, min 0°C on Sun morning). Wind will be generally light. | Days 5–7 Weather SummaryA dusting of snow turning to light rain (total 4mm) on Tue night. Freeze-thaw conditions (max 3°C on Tue afternoon, min 0°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 9 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | | |  | |  | | |  |  | | |  |  | |  | | | | |
cloudy | cloudy | cloudy | cloudy | cloudy | light rain | cloudy | cloudy | light snow | snow shwrs | cloudy | light rain | rain shwrs | some clouds | light rain | light rain | light rain | light rain | rain shwrs | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | 2.0 | 1.0 | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 0.1 | — | — | — | — | — | 0.4 | 0.1 | — | 0.3 | 1.2 | 0.6 | 1.0 | 0.6 | |
max°C | 5 | 5 | 8 | 9 | 6 | 3 | 2 | 1 | 2 | 1 | 0 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 2 |
min°C | 5 | 5 | 8 | 7 | 3 | 2 | 1 | 0 | 2 | 0 | 0 | 1 | 2 | 1 | 2 | 3 | 2 | 2 | 1 |
5 | 2 | 6 | 4 | -1 | -2 | -2 | -3 | -1 | -2 | -2 | -2 | 1 | -1 | 1 | 1 | 2 | 1 | 1 | |
2400 | 2450 | 2800 | 2800 | 1950 | 1850 | 1700 | 1600 | 1750 | 1550 | 1600 | 1900 | 1900 | 2000 | 2150 | 2000 | 1900 | 2000 | 2100 | |
Cloud base (m) | 4600 | 6100 | 6200 | 5350 | 2600 | 2200 | 1700 | 800 | 1500 | 850 | 800 | 800 | 2200 | 1600 | 800 | 600 | 600 | 700 | 700 |
 | — | 5:35 | — | — | 5:33 | — | — | 5:31 | — | — | 5:31 | — | — | 5:28 | — | — | 5:28 | — | — |
 | — | — | — | 8:34 | — | — | 8:35 | — | — | 8:36 | — | — | 8:37 | — | — | 8:38 | — | — | 8:39 |
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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 9°C on Fri night, min 0°C on Sun morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A dusting of snow turning to light rain (total 4mm) on Tue night. Freeze-thaw conditions (max 3°C on Tue afternoon, min 0°C on Sun night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 1500 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.