– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Sat 06 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Sat 06 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Sat 06 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA light covering of new snow mostly falling on Sat afternoon. Becoming milder with light rain (total 7mm) on Mon night. Freeze-thaw conditions (max 7°C on Mon afternoon, min -1°C on Sat morning). Wind will be generally light. | Days 4–6 Weather SummaryModerate rain (total 13mm) heaviest on Tue morning, then becoming colder with a dusting of snow on Wed morning. Freeze-thaw conditions (max 10°C on Thu night, min 0°C on Tue night). Wind will be generally light. | |||||||||||||||||
Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | |  |  |  | |  | | | | | |  | |
light snow | light snow | snow shwrs | some clouds | rain shwrs | rain shwrs | some clouds | light rain | mod. rain | heavy rain | light rain | cloudy | light snow | rain shwrs | rain shwrs | some clouds | some clouds | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
2 | 3 | 1 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | |
— | — | — | — | 1 | 0.1 | — | 0.1 | 6 | 11 | 1.9 | — | — | 0.3 | 0.1 | — | — | — | |
max °C | -1 | 1 | 1 | 0 | 2 | 3 | 5 | 7 | 4 | 2 | 2 | 1 | 0 | 3 | 3 | 4 | 8 | 10 |
min °C | -1 | 0 | 0 | 0 | 2 | 3 | 2 | 5 | 3 | 2 | 2 | 0 | 0 | 1 | 3 | 3 | 7 | 8 |
-3 | -2 | -3 | -3 | 0 | 2 | 0 | 5 | 1 | -1 | -1 | -3 | -3 | -1 | 3 | 3 | 6 | 8 | |
1350 | 1600 | 1550 | 1550 | 1950 | 1950 | 2200 | 2300 | 2100 | 1850 | 1800 | 1550 | 1600 | 2350 | 2900 | 2800 | 3100 | 3250 | |
Cloud base (m) | 550 | 750 | 900 | 600 | 800 | 2350 | 1750 | 2050 | 550 | 550 | 650 | 600 | 600 | 700 | 2050 | 1550 | 1850 | |
 | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | — | 9:06 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 | — | — | 9:08 | — | — | 9:09 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A light covering of new snow mostly falling on Sat afternoon. Becoming milder with light rain (total 7mm) on Mon night. Freeze-thaw conditions (max 7°C on Mon afternoon, min -1°C on Sat morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Moderate rain (total 13mm) heaviest on Tue morning, then becoming colder with a dusting of snow on Wed morning. Freeze-thaw conditions (max 10°C on Thu night, min 0°C on Tue 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.