– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Mon 01 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Mon 01 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Mon 01 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 5mm), mostly falling on Wed afternoon. Very mild (max 16°C on Tue afternoon, min 4°C on Wed night). Wind will be generally light. | Days 4–6 Weather SummaryA moderate fall of snow, heaviest on Fri night. Freeze-thaw conditions (max 6°C on Thu afternoon, min -1°C on Fri night). Wind will be generally light. | |||||||||||||||||
Monday 1 | Tuesday 2 | Wednesday 3 | Thursday 4 | Friday 5 | Saturday 6 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | |  |  |  | | | | |  |  |  | |  | |
some clouds | cloudy | some clouds | clear | clear | some clouds | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | some clouds | rain shwrs | light snow | mod. snow | snow shwrs | snow shwrs | snow shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 10 | 2 | 2 | 1 | |
— | — | — | — | — | — | 1.8 | 3 | 0.4 | 0.3 | 0.4 | — | 0.1 | — | — | — | — | — | |
max °C | 10 | 12 | 14 | 13 | 16 | 15 | 9 | 8 | 6 | 3 | 6 | 6 | 3 | 2 | 0 | -1 | 1 | 1 |
min °C | 9 | 12 | 13 | 13 | 15 | 11 | 7 | 7 | 4 | 3 | 5 | 3 | 1 | 1 | -1 | -1 | 1 | 0 |
8 | 12 | 12 | 13 | 15 | 9 | 6 | 5 | 4 | 1 | 4 | 0 | -1 | -5 | -4 | -6 | -1 | -2 | |
2850 | 3000 | 3050 | 3000 | 3300 | 3200 | 2550 | 2550 | 2350 | 2400 | 2550 | 2350 | 1950 | 1750 | 1400 | 1400 | 1700 | 1500 | |
Cloud base (m) | 6800 | 2150 | 2200 | 2200 | 700 | 900 | 1900 | 1900 | 800 | 550 | 600 | 850 | 850 | |||||
 | 5:09 | — | — | 5:09 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:05 | — | — |
 | — | — | 9:01 | — | — | 9:02 | — | — | 9:04 | — | — | 9:04 | — | — | 9:05 | — | — | 9:06 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 5mm), mostly falling on Wed afternoon. Very mild (max 16°C on Tue afternoon, min 4°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A moderate fall of snow, heaviest on Fri night. Freeze-thaw conditions (max 6°C on Thu afternoon, 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.