– 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 below freezing (max -5°C on Tue morning, min -9°C on Thu night). Wind will be generally light. | Days 4–6 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 2°C on Sat night, min -8°C on Fri morning). Winds increasing (calm on Fri afternoon, fresh winds from the S 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 | cloudy | snow shwrs | cloudy | some clouds | some clouds | some clouds | clear | cloudy | some clouds | cloudy | cloudy | cloudy | some clouds | some clouds | cloudy | light rain | light snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.1 | — | |
max °C | -5 | -6 | -7 | -8 | -8 | -8 | -8 | -8 | -8 | -7 | -6 | -1 | 0 | 0 | 2 | 1 | 2 | 0 |
min °C | -5 | -6 | -8 | -8 | -8 | -8 | -8 | -8 | -9 | -8 | -7 | -6 | -1 | -1 | 0 | 1 | 2 | -4 |
-5 | -9 | -11 | -11 | -11 | -8 | -8 | -11 | -13 | -12 | -10 | -10 | -5 | -6 | -5 | -3 | -2 | -12 | |
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 below freezing (max -5°C on Tue morning, min -9°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A dusting of new snow. Freeze-thaw conditions (max 2°C on Sat night, min -8°C on Fri morning). Winds increasing (calm on Fri afternoon, fresh winds from the S by Sun night).
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.