– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Fri 05 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Fri 05 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Fri 05 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA moderate fall of snow, heaviest on Fri afternoon. Becoming mild with drizzle, on Sun afternoon. Freeze-thaw conditions (max 4°C on Sun night, min -1°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummaryMild at first with light rain (total 3mm) on Mon afternoon followed by colder weather and light fall of snow, heaviest on Tue morning. Freeze-thaw conditions (max 4°C on Wed night, min 0°C on Mon night). Wind will be generally light. | |||||||||||||||||
Friday 5 | Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | |  | | | |  | | |  |  |  |  | |
some clouds | snow shwrs | light snow | light snow | light snow | light snow | some clouds | light rain | light snow | light snow | light snow | mod. snow | light snow | snow shwrs | cloudy | cloudy | rain shwrs | rain shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | 3 | 5 | 4 | 1 | 1 | — | — | 1 | 1 | 2 | 7 | 5 | 1 | — | — | — | — | |
— | — | — | — | — | — | — | 1 | 0.1 | — | 1.6 | — | — | — | — | — | 1.2 | 0.4 | |
max °C | 2 | 2 | 1 | -1 | 0 | 1 | 0 | 3 | 4 | 1 | 2 | 1 | 0 | 2 | 2 | 2 | 3 | 4 |
min °C | 1 | 2 | -1 | -1 | 0 | 0 | 0 | 2 | 1 | 1 | 2 | 0 | 0 | 1 | 1 | 2 | 2 | 4 |
-2 | -3 | -4 | -4 | -2 | -3 | -3 | -1 | -3 | -4 | -1 | -3 | -2 | -2 | -2 | -1 | 0 | 4 | |
1750 | 1800 | 1400 | 1300 | 1550 | 1550 | 1600 | 2050 | 1800 | 1700 | 1800 | 1500 | 1450 | 1800 | 1750 | 1900 | 2200 | 3000 | |
Cloud base (m) | 750 | 800 | 550 | 550 | 600 | 550 | 600 | 1500 | 2500 | 550 | 550 | 550 | 550 | 600 | 600 | 600 | 700 | 2000 |
 | 5:07 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | — | 9:05 | — | — | 9:06 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 | — | — | 9:08 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A moderate fall of snow, heaviest on Fri afternoon. Becoming mild with drizzle, on Sun afternoon. Freeze-thaw conditions (max 4°C on Sun night, min -1°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mild at first with light rain (total 3mm) on Mon afternoon followed by colder weather and light fall of snow, heaviest on Tue morning. Freeze-thaw conditions (max 4°C on Wed night, min 0°C on Mon 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.