– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Sat 04 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Sat 04 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sat 04 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 7°C on Sun night, min -10°C on Tue morning). Winds increasing (calm on Sun morning, fresh winds from the WSW by Mon night). | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 2°C on Thu night, min -4°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | |  | |  | | |  | |  | | | |  | | | |
some clouds | some clouds | some clouds | some clouds | some clouds | rain shwrs | some clouds | snow shwrs | snow shwrs | some clouds | clear | clear | clear | clear | clear | clear | cloudy | some clouds | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 0.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 5 | 6 | 6 | 7 | 4 | 3 | 0 | -9 | -6 | -3 | -3 | 0 | 0 | 0 | 1 | 2 | -1 | 0 | -2 |
min °C | 3 | 6 | 6 | 5 | 3 | 1 | -9 | -10 | -8 | -4 | -4 | -1 | 0 | 0 | 1 | 0 | -1 | -1 | -6 |
0 | 5 | 5 | 2 | -2 | -5 | -18 | -20 | -17 | -10 | -8 | -1 | 0 | -2 | -2 | -5 | -6 | -7 | -14 | |
2800 | 3000 | 3000 | 2900 | 2600 | 2350 | 950 | 800 | 1150 | 1000 | 1400 | 2100 | 2200 | 2150 | 2400 | 2300 | 2000 | 2000 | 1250 | |
Cloud base (m) | 6200 | 5750 | 5800 | 6050 | 5850 | 1450 | 800 | 700 | 6900 | 1650 | 9150 | 8800 | 8600 | 2100 | 2050 | 800 | |||
 | — | 6:37 | — | — | 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: A dusting of new snow. Freeze-thaw conditions (max 7°C on Sun night, min -10°C on Tue morning). Winds increasing (calm on Sun morning, fresh winds from the WSW by Mon night).
South Twin Sister Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 2°C on Thu night, min -4°C on Tue 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.