– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Sat 16 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Sat 16 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Sat 16 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA light covering of new snow mostly falling on Sat morning. Freeze-thaw conditions (max 4°C on Sun afternoon, min -3°C on Sat morning). Wind will be generally light. | Days 4–6 Weather SummaryA dusting of snow turning to light rain (total 3mm) on Tue afternoon. Mild temperatures (max 7°C on Wed afternoon, min 2°C on Tue morning). Wind will be generally light. | |||||||||||||||||
Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  | | | | | |  | | | |  | | |
light snow | snow shwrs | some clouds | some clouds | rain shwrs | rain shwrs | cloudy | some clouds | some clouds | light snow | rain shwrs | rain shwrs | clear | some clouds | some clouds | some clouds | light rain | rain shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
4 | 2 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | |
— | — | — | — | 0.2 | 0.1 | — | — | — | — | 2 | 0.7 | — | — | — | — | 0.2 | 0.2 | |
max °C | -2 | -1 | -1 | 1 | 4 | 4 | 3 | 4 | 4 | 2 | 3 | 3 | 4 | 7 | 7 | 5 | 7 | 6 |
min °C | -3 | -2 | -1 | -1 | 2 | 3 | 2 | 3 | 2 | 2 | 2 | 3 | 3 | 7 | 6 | 5 | 6 | 4 |
-7 | -6 | -4 | -4 | 2 | 1 | 0 | 1 | -1 | 0 | 2 | 3 | 3 | 6 | 4 | 3 | 4 | 2 | |
1150 | 1350 | 1250 | 1600 | 2100 | 2050 | 1850 | 2100 | 2050 | 1800 | 2000 | 2300 | 2650 | 3000 | 3250 | 3050 | 2650 | 2250 | |
Cloud base (m) | 600 | 600 | 700 | 800 | 800 | 1550 | 2800 | 1900 | 600 | 750 | 2250 | 900 | 2000 | 2050 | 1900 | 1600 | 1600 | |
 | 5:24 | — | — | 5:24 | — | — | 5:22 | — | — | 5:22 | — | — | 5:20 | — | — | 5:18 | — | — |
 | — | — | 8:43 | — | — | 8:44 | — | — | 8:45 | — | — | 8:46 | — | — | 8:47 | — | — | 8:50 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A light covering of new snow mostly falling on Sat morning. Freeze-thaw conditions (max 4°C on Sun afternoon, min -3°C on Sat morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A dusting of snow turning to light rain (total 3mm) on Tue afternoon. Mild temperatures (max 7°C on Wed afternoon, min 2°C on Tue morning). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 1500 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.