– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Thu 02 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Thu 02 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Thu 02 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Freeze-thaw conditions (max 6°C on Sun afternoon, min -6°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 7°C on Sun night, min -11°C on Tue morning). Winds decreasing (strong winds from the WSW on Mon night, calm by Wed afternoon). | ||||||||||||||||||
Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  | | | | | |  |  |  | |  | | | | |
some clouds | cloudy | some clouds | some clouds | some clouds | clear | some clouds | some clouds | some clouds | some clouds | some clouds | risk tstorm | snow shwrs | snow shwrs | some clouds | clear | clear | some clouds | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | 0.4 | — | — | — | — | — | — | — | |
max °C | -5 | -5 | -3 | -2 | -1 | 1 | 4 | 5 | 6 | 7 | 4 | 3 | 1 | -8 | -5 | -5 | -6 | -5 | -4 |
min °C | -6 | -5 | -4 | -3 | -2 | 1 | 3 | 5 | 6 | 5 | 3 | 2 | -10 | -11 | -7 | -6 | -6 | -5 | -4 |
-12 | -10 | -9 | -8 | -7 | -2 | 0 | 5 | 5 | 2 | -1 | -4 | -20 | -19 | -15 | -10 | -9 | -5 | -7 | |
1100 | 1250 | 1500 | 1650 | 1800 | 2400 | 2850 | 2950 | 3000 | 2950 | 2650 | 2400 | 750 | 750 | 1150 | 900 | 1250 | 1450 | 1450 | |
Cloud base (m) | 600 | 700 | 900 | 900 | 950 | 1750 | 5300 | 6600 | 6600 | 6500 | 5950 | 1750 | 750 | 650 | 750 | 1550 | 1650 | 850 | |
 | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — |
 | — | — | 7:40 | — | — | 7:42 | — | — | 7:44 | — | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — |
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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 6°C on Sun afternoon, min -6°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 7°C on Sun night, min -11°C on Tue morning). Winds decreasing (strong winds from the WSW on Mon night, calm by Wed afternoon).
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.