– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 pm Fri 28 Nov Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Fri 28 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Fri 28 Nov 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 1°C on Fri night, min -5°C on Sat morning). Wind will be generally light. | Days 5–7 Weather SummaryA light covering of new snow mostly falling on Mon night. Temperatures will be below freezing (max 0°C on Thu afternoon, min -6°C on Mon night). Winds increasing (light winds from the NNW on Tue morning, fresh winds from the WSW by Thu afternoon). | ||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 1 | Tuesday 2 | Wednesday 3 | Thursday 4 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | | | |  | | | | | | |  | |  | |
cloudy | cloudy | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | cloudy | light snow | cloudy | some clouds | some clouds | some clouds | cloudy | cloudy | light snow | light snow | mod. snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | 1 | 1 | 9 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 1 | -2 | -5 | -3 | -3 | -1 | 0 | 0 | -2 | -4 | -5 | -5 | -5 | -5 | -4 | -2 | -1 | 0 | 0 |
min°C | -1 | -5 | -5 | -5 | -3 | -2 | -1 | -1 | -3 | -6 | -5 | -5 | -5 | -5 | -5 | -3 | -2 | 0 | -4 |
-6 | -9 | -5 | -9 | -6 | -7 | -7 | -7 | -10 | -12 | -9 | -9 | -9 | -11 | -11 | -8 | -7 | -6 | -13 | |
2300 | 1850 | 1250 | 1150 | 1400 | 1500 | 1400 | 1350 | 1400 | 1150 | 1000 | 1000 | 800 | 950 | 1000 | 1050 | 1450 | 2200 | 2050 | |
Cloud base (m) | 4900 | 5950 | 2050 | 600 | 6300 | 6100 | 4250 | 2050 | 1650 | 600 | 600 | 600 | 600 | 600 | 750 | 600 | 650 | 600 | 550 |
 | — | 7:37 | — | — | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:43 | — | — |
 | — | — | 4:15 | — | — | 4:14 | — | — | 4:14 | — | — | 4:13 | — | — | 4:13 | — | — | 4:12 | — |
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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 1°C on Fri night, min -5°C on Sat morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A light covering of new snow mostly falling on Mon night. Temperatures will be below freezing (max 0°C on Thu afternoon, min -6°C on Mon night). Winds increasing (light winds from the NNW on Tue morning, fresh winds from the WSW by Thu 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.