– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 am Tue 23 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Tue 23 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Tue 23 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMild at first with light rain (total 4mm) on Wed morning followed by colder weather and light fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 3°C on Tue night, min -5°C on Tue morning). Mainly gales. | Days 4–6 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 4°C on Sun night, min -6°C on Fri afternoon). Wind will be generally light. | |||||||||||||||||
Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | | |  | | |  | | | |  | | | |
some clouds | cloudy | cloudy | light rain | light snow | cloudy | some clouds | light snow | mod. snow | light snow | some clouds | some clouds | some clouds | some clouds | some clouds | clear | clear | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | 3 | — | — | 1 | 8 | 1 | — | — | — | — | — | — | — | — | |
— | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -3 | -2 | 3 | 3 | 0 | 1 | 3 | 0 | -2 | -3 | -5 | -6 | -6 | -6 | -3 | 0 | 2 | 4 |
min °C | -5 | -3 | -1 | 3 | -2 | -2 | 2 | -1 | -3 | -4 | -6 | -6 | -6 | -6 | -5 | -1 | 1 | 2 |
-11 | -7 | -4 | -2 | -11 | -9 | 0 | -4 | -7 | -9 | -11 | -9 | -8 | -6 | -8 | -3 | -1 | 1 | |
700 | 950 | 1500 | 2150 | 1450 | 1150 | 1850 | 1550 | 950 | 1000 | 800 | 0 | 450 | 600 | 0 | 1050 | 1850 | 2350 | |
Cloud base (m) | 600 | 650 | 1450 | 1650 | 750 | 600 | 650 | 2100 | 550 | 550 | 550 | 650 | 700 | 600 | 900 | 650 | 650 | 650 |
 | 7:58 | — | — | 7:58 | — | — | 7:58 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — |
 | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:16 | — | — | 4:17 | — | — | 4:17 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mild at first with light rain (total 4mm) on Wed morning followed by colder weather and light fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 3°C on Tue night, min -5°C on Tue morning). Mainly gales.
South Twin Sister Weather (Days 3-6):
A dusting of new snow. Freeze-thaw conditions (max 4°C on Sun night, min -6°C on Fri 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.