– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Sun 10 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Sun 10 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Sun 10 May 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 13°C on Tue afternoon, min 0°C on Sun night). Wind will be generally light. | Days 4–6 Weather SummaryA light covering of new snow mostly falling on Thu night. Freeze-thaw conditions (max 10°C on Wed morning, min -5°C on Thu night). Winds increasing (light winds from the WSW on Wed night, fresh winds from the W by Thu night). | |||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | | | | | | | |  |  | | | |
cloudy | some clouds | some clouds | rain shwrs | clear | clear | some clouds | clear | some clouds | rain shwrs | some clouds | some clouds | cloudy | cloudy | snow shwrs | snow shwrs | some clouds | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 1 | — | — | |
— | — | — | 0.1 | — | — | — | — | — | 0.2 | — | — | — | — | — | — | — | — | |
max °C | 3 | 2 | 0 | 3 | 6 | 9 | 11 | 13 | 13 | 10 | 10 | 9 | 2 | -1 | -2 | -5 | -1 | 0 |
min °C | 2 | 1 | 0 | 1 | 5 | 7 | 10 | 12 | 11 | 10 | 10 | 4 | 0 | -1 | -5 | -5 | -3 | -1 |
-3 | -4 | -6 | -2 | 4 | 6 | 9 | 10 | 9 | 8 | 9 | 2 | -5 | -7 | -14 | -12 | -9 | -6 | |
2450 | 2300 | 2150 | 2900 | 3250 | 3500 | 3800 | 3800 | 3700 | 3650 | 3550 | 3250 | 2200 | 1900 | 1400 | 1250 | 1900 | 2000 | |
Cloud base (m) | 750 | 2250 | 1950 | 1600 | 6750 | 9200 | 6650 | 6950 | 3500 | 1600 | 750 | 600 | 650 | 950 | ||||
 | 5:33 | — | — | 5:31 | — | — | 5:31 | — | — | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — |
 | — | — | 8:35 | — | — | 8:36 | — | — | 8:37 | — | — | 8:38 | — | — | 8:39 | — | — | 8:42 |
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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 13°C on Tue afternoon, min 0°C on Sun night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A light covering of new snow mostly falling on Thu night. Freeze-thaw conditions (max 10°C on Wed morning, min -5°C on Thu night). Winds increasing (light winds from the WSW on Wed night, fresh winds from the W by Thu 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.