– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Sun 05 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sun 05 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sun 05 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 7°C on Sun night, min -9°C on Tue morning). Winds decreasing (fresh winds from the SW on Mon night, light winds from the W by Tue night). | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 2°C on Fri afternoon, min -4°C on Wed night). Wind will be generally light. | ||||||||||||||||
Sun 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  | | | | |  | | | | | | | |
some clouds | some clouds | rain shwrs | rain shwrs | some clouds | clear | some clouds | some clouds | clear | clear | clear | clear | clear | clear | clear | some clouds | clear | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | 0.1 | 0.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 6 | 7 | 4 | 3 | 0 | -8 | -5 | -4 | -4 | -3 | -3 | -2 | 0 | 1 | 1 | 2 | 2 |
min °C | 6 | 5 | 3 | 2 | -8 | -9 | -7 | -4 | -5 | -3 | -4 | -3 | -1 | 0 | 1 | 2 | -2 |
5 | 2 | -2 | -4 | -17 | -19 | -16 | -8 | -10 | -8 | -11 | -3 | -1 | 0 | -2 | -1 | -9 | |
2950 | 2900 | 2600 | 2400 | 1150 | 950 | 1200 | 1050 | 1300 | 1550 | 1400 | 1700 | 2100 | 2250 | 2250 | 2400 | 2150 | |
Cloud base (m) | 6000 | 5750 | 5650 | 5300 | 2050 | 650 | 1750 | 6550 | 1550 | 1600 | 800 | 1900 | 6550 | 8750 | |||
 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:28 | — | — | 6:26 | — | — |
 | 7:44 | — | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — | 7:50 | — | — | 7:51 | — |
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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 7°C on Sun night, min -9°C on Tue morning). Winds decreasing (fresh winds from the SW on Mon night, light winds from the W by Tue night).
South Twin Sister Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 2°C on Fri afternoon, min -4°C on Wed 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.