– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Tue 17 Feb Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Tue 17 Feb Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Tue 17 Feb Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA dusting of new snow. Temperatures will be well below freezing (max -10°C on Tue morning, min -13°C on Wed morning). Wind will be generally light. | Days 4–6 Weather SummaryA light covering of new snow mostly falling on Sun night. Temperatures will be below freezing (max -2°C on Sat night, min -10°C on Fri morning). Winds increasing (light winds from the SW on Fri afternoon, strong winds from the SSW by Sun night). | |||||||||||||||||
Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  |  | |  | | | | | | | | |  | |
cloudy | light snow | snow shwrs | cloudy | some clouds | some clouds | clear | clear | cloudy | some clouds | cloudy | cloudy | cloudy | some clouds | some clouds | cloudy | cloudy | light snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -10 | -10 | -11 | -12 | -12 | -12 | -12 | -12 | -11 | -10 | -9 | -6 | -4 | -4 | -2 | -2 | -2 | -3 |
min °C | -11 | -11 | -12 | -13 | -12 | -12 | -12 | -12 | -11 | -10 | -9 | -9 | -5 | -4 | -4 | -3 | -2 | -8 |
-15 | -16 | -19 | -20 | -18 | -12 | -18 | -18 | -17 | -16 | -14 | -16 | -12 | -10 | -10 | -10 | -9 | -17 | |
750 | 700 | 300 | 350 | 500 | 0 | 350 | 500 | 0 | 400 | 600 | 400 | 1500 | 1450 | 1700 | 1750 | 1800 | 1100 | |
Cloud base (m) | 5150 | 750 | 550 | 600 | 600 | 650 | 650 | 850 | 600 | 1650 | 750 | 650 | 2500 | 2850 | 2750 | 2600 | 2300 | 800 |
 | 7:11 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — |
 | — | 5:31 | — | — | 5:34 | — | — | 5:35 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — |
Loading...
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A dusting of new snow. Temperatures will be well below freezing (max -10°C on Tue morning, min -13°C on Wed morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A light covering of new snow mostly falling on Sun night. Temperatures will be below freezing (max -2°C on Sat night, min -10°C on Fri morning). Winds increasing (light winds from the SW on Fri afternoon, strong winds from the SSW by Sun night).
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.