– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Fri 05 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Fri 05 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Fri 05 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA heavy fall of snow, heaviest during Fri night. Temperatures will be below freezing (max 0°C on Sun afternoon, min -5°C on Fri night). Wind will be generally light. | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Thu afternoon, min -2°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | |  |  | |  |  | | | | |  | |  |  | |
heavy snow | light snow | light snow | snow shwrs | some clouds | some clouds | cloudy | cloudy | some clouds | mod. snow | mod. snow | light snow | cloudy | cloudy | cloudy | some clouds | some clouds | light rain | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
12 | 3 | 5 | 1 | — | — | — | — | — | 10 | 6 | 4 | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.1 | — | |
max °C | -3 | -5 | -4 | -3 | -3 | 0 | 0 | -1 | 0 | 0 | -2 | -1 | -1 | -2 | -1 | -1 | 0 | 3 | 3 |
min °C | -5 | -5 | -4 | -4 | -3 | -2 | -2 | -2 | 0 | -2 | -2 | -2 | -2 | -2 | -1 | -2 | -1 | 1 | 3 |
-11 | -10 | -8 | -9 | -7 | -6 | -8 | -6 | -4 | -6 | -6 | -7 | -7 | -6 | -5 | -2 | -4 | 1 | 3 | |
1400 | 1400 | 1600 | 1500 | 1600 | 2050 | 1850 | 1900 | 2150 | 1850 | 1750 | 1950 | 1850 | 1700 | 1950 | 1900 | 2200 | 2700 | 2700 | |
Cloud base (m) | 550 | 600 | 650 | 700 | 550 | 850 | 1850 | 550 | 750 | 550 | 550 | 600 | 650 | 600 | 850 | 1650 | 1000 | 1700 | |
 | — | 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 heavy fall of snow, heaviest during Fri night. Temperatures will be below freezing (max 0°C on Sun afternoon, min -5°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Thu afternoon, min -2°C on Mon night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 2134 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.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
| |||||
SHIP8010 | |||||
SHIP9217 |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.