– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Fri 03 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Fri 03 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Fri 03 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 6°C on Sun afternoon, min -6°C on Fri morning). Wind will be generally light. | Days 4–6 Weather SummaryDrizzle on Mon afternoon turning to light snow on Tue afternoon. Freeze-thaw conditions (max 4°C on Mon morning, min -11°C on Tue morning). Winds decreasing (fresh winds from the WSW on Mon night, calm by Wed night). | |||||||||||||||||
Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | | | | |  |  |  |  |  | | | | |
cloudy | some clouds | some clouds | clear | clear | some clouds | some clouds | cloudy | some clouds | some clouds | risk tstorm | snow shwrs | snow shwrs | light snow | clear | clear | some clouds | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 4 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | 1.5 | — | — | — | — | — | — | — | |
max °C | -5 | -3 | -2 | -1 | 1 | 5 | 5 | 6 | 6 | 4 | 4 | 2 | -11 | -9 | -6 | -5 | -3 | -2 |
min °C | -6 | -4 | -3 | -2 | 1 | 2 | 5 | 6 | 5 | 4 | 2 | -8 | -11 | -10 | -8 | -7 | -3 | -2 |
-11 | -9 | -8 | -7 | -2 | 0 | 5 | 5 | 2 | 1 | -3 | -18 | -20 | -20 | -15 | -12 | -3 | -2 | |
1250 | 1600 | 1650 | 1850 | 2400 | 2850 | 2950 | 3000 | 2900 | 2700 | 2500 | 950 | 750 | 900 | 700 | 1200 | 1750 | 1800 | |
Cloud base (m) | 750 | 1600 | 950 | 1000 | 1800 | 6050 | 5750 | 6600 | 6250 | 5600 | 1850 | 700 | 600 | 600 | 650 | 650 | 1650 | |
 | 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 Fri morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Drizzle on Mon afternoon turning to light snow on Tue afternoon. Freeze-thaw conditions (max 4°C on Mon morning, min -11°C on Tue morning). Winds decreasing (fresh winds from the WSW on Mon night, calm by Wed 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.