– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Mon 27 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Mon 27 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Mon 27 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 4°C on Wed afternoon, min -3°C on Mon night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Mild temperatures (max 9°C on Sun morning, min 1°C on Fri morning). Wind will be generally light. | ||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | |  | | | | | | | |  | | |
some clouds | cloudy | cloudy | cloudy | some clouds | clear | clear | clear | some clouds | some clouds | cloudy | some clouds | some clouds | cloudy | some clouds | risk tstorm | clear | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.5 | — | |
max °C | -2 | -2 | -3 | -2 | 0 | 1 | 4 | 4 | 3 | 4 | 3 | 1 | 2 | 2 | 4 | 6 | 8 |
min °C | -2 | -3 | -3 | -3 | -2 | 0 | 3 | 4 | 3 | 4 | 2 | 1 | 1 | 2 | 3 | 5 | 7 |
-6 | -3 | -6 | -3 | -4 | -2 | 3 | 4 | 0 | 1 | -1 | 1 | 1 | 2 | 0 | 3 | 4 | |
1850 | 1650 | 1500 | 1650 | 1900 | 2250 | 2700 | 2700 | 2600 | 2700 | 2500 | 2300 | 2450 | 2450 | 2750 | 2900 | 3300 | |
Cloud base (m) | 1600 | 600 | 650 | 600 | 1700 | 1650 | 2200 | 6700 | 2450 | 2400 | 2000 | 2500 | 2850 | 2400 | |||
 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:46 | — | — |
 | — | 8:15 | — | — | 8:17 | — | — | 8:19 | — | — | 8:21 | — | — | 8:22 | — | — | 8:23 |
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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 Wed afternoon, min -3°C on Mon night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Mild temperatures (max 9°C on Sun morning, min 1°C on Fri morning). 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.