– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Tue 21 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Tue 21 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Tue 21 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 8°C on Tue morning, min -1°C on Thu morning). Wind will be generally light. | Days 4–6 Weather SummaryA dusting of new snow. Mild temperatures (max 6°C on Fri afternoon, min 1°C on Sat afternoon). Wind will be generally light. | |||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | |  |  | | | | |  | | | | |
cloudy | light rain | light rain | light snow | light snow | light snow | some clouds | some clouds | some clouds | clear | some clouds | some clouds | cloudy | light rain | rain shwrs | light rain | light snow | rain shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | 1 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | 1 | — | |
— | 0.2 | 0.4 | — | — | — | — | — | — | — | — | — | — | 0.1 | 0.1 | 0.5 | 0.1 | 0.1 | |
max °C | 8 | 6 | 3 | 2 | 1 | 1 | 0 | 1 | 1 | 3 | 6 | 5 | 3 | 3 | 4 | 2 | 3 | 3 |
min °C | 6 | 4 | 2 | 2 | 1 | 0 | -1 | 0 | 1 | 2 | 5 | 4 | 3 | 1 | 2 | 2 | 1 | 1 |
6 | 1 | 0 | 0 | -1 | -2 | -4 | -3 | 0 | 0 | 2 | 4 | 3 | -1 | 2 | 2 | -1 | 1 | |
3100 | 2750 | 2350 | 1950 | 1800 | 1500 | 1500 | 1750 | 1600 | 1850 | 2100 | 2000 | 1850 | 1900 | 1800 | 1750 | 1900 | 1800 | |
Cloud base (m) | 4400 | 850 | 550 | 550 | 550 | 600 | 650 | 750 | 1550 | 1850 | 2850 | 3100 | 2150 | 4650 | 3150 | 1850 | 2300 | |
 | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — |
 | — | — | 8:07 | — | — | 8:08 | — | — | 8:09 | — | — | 8:12 | — | — | 8:13 | — | — | 8:15 |
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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 8°C on Tue morning, min -1°C on Thu morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A dusting of new snow. Mild temperatures (max 6°C on Fri afternoon, 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 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.