– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Tue 02 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Tue 02 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Tue 02 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 5mm) at first, then becoming colder with a dusting of snow on Fri morning. Freeze-thaw conditions (max 15°C on Tue night, min 0°C on Fri morning). Wind will be generally light. | Days 5–7 Weather SummaryA moderate fall of snow, heaviest on Sat morning. Freeze-thaw conditions (max 6°C on Sun night, min -1°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 3 | Thursday 4 | Friday 5 | Saturday 6 | Sunday 7 | Monday 8 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  |  | |  |  |  |  | | |  | | | | |
some clouds | cloudy | light rain | light rain | rain shwrs | rain shwrs | cloudy | light snow | light snow | mod. snow | mod. snow | snow shwrs | some clouds | cloudy | some clouds | rain shwrs | cloudy | light rain | rain shwrs | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | 1 | 2 | 9 | 8 | 1 | — | — | — | — | — | — | — | |
— | — | 3 | 1.2 | 0.8 | 0.2 | — | — | — | — | — | — | — | — | — | 0.2 | — | 0.3 | 0.1 | |
max °C | 15 | 9 | 6 | 6 | 3 | 6 | 5 | 0 | 1 | 0 | -1 | 1 | 1 | 0 | 2 | 6 | 4 | 5 | 6 |
min °C | 13 | 7 | 6 | 3 | 2 | 5 | 1 | 0 | 1 | -1 | -1 | 0 | 0 | -1 | 1 | 3 | 4 | 5 | 5 |
12 | 4 | 4 | 1 | 0 | 3 | -2 | -5 | -4 | -3 | -4 | -2 | 0 | -4 | -2 | 2 | 3 | 3 | 3 | |
3200 | 2550 | 2450 | 2050 | 2000 | 2400 | 2000 | 1500 | 1650 | 1350 | 1300 | 1600 | 1550 | 1450 | 1800 | 2400 | 2150 | 2300 | 2400 | |
Cloud base (m) | 2400 | 700 | 850 | 600 | 900 | 2050 | 800 | 550 | 550 | 600 | 600 | 1700 | 600 | 650 | 2750 | 1700 | 2400 | ||
 | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | — | — | 9:04 | — | — | 9:04 | — | — | 9:05 | — | — | 9:06 | — | — | 9:07 | — | — | 9:07 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 5mm) at first, then becoming colder with a dusting of snow on Fri morning. Freeze-thaw conditions (max 15°C on Tue night, min 0°C on Fri morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A moderate fall of snow, heaviest on Sat morning. Freeze-thaw conditions (max 6°C on Sun night, min -1°C on Fri 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.