– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Tue 07 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Tue 07 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Tue 07 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Freeze-thaw conditions (max 4°C on Thu night, min -5°C on Tue morning). Wind will be generally light. | Days 4–6 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 4°C on Fri afternoon, min -3°C on Sun night). Wind will be generally light. | |||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | | | | | |  |  | |  |  | | | |
clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | cloudy | cloudy | cloudy | light snow | light snow | cloudy | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -4 | -2 | -2 | -2 | -1 | 0 | 1 | 3 | 4 | 3 | 4 | 3 | 1 | 1 | 0 | -2 | -2 | -2 |
min °C | -5 | -2 | -3 | -3 | -1 | -1 | 1 | 3 | 3 | 3 | 4 | 1 | 0 | 1 | -1 | -2 | -2 | -3 |
-13 | -8 | -7 | -7 | -5 | -5 | 0 | 2 | 0 | 0 | 1 | -3 | -2 | 1 | -1 | -2 | -4 | -8 | |
1300 | 1550 | 1450 | 1500 | 1950 | 2100 | 2300 | 2600 | 2650 | 2650 | 2700 | 2500 | 2200 | 2250 | 2000 | 1350 | 1400 | 1400 | |
Cloud base (m) | 1900 | 1950 | 900 | 9250 | 8800 | 9250 | 9050 | 3300 | 1600 | 1550 | 1500 | 550 | 550 | 550 | ||||
 | 6:33 | — | — | 6:31 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — |
 | — | 7:46 | — | — | 7:47 | — | — | 7:50 | — | — | 7:51 | — | — | 7:52 | — | — | 7:53 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Freeze-thaw conditions (max 4°C on Thu night, min -5°C on Tue morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A dusting of new snow. Freeze-thaw conditions (max 4°C on Fri afternoon, min -3°C on Sun 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.