– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Wed 04 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Wed 04 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Wed 04 Mar Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA moderate fall of snow, heaviest on Wed morning. Freeze-thaw conditions (max 2°C on Fri night, min -4°C on Wed night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 5mm) on Sat night. Becoming colder with heavy fall of snow, heaviest during Sun morning. Freeze-thaw conditions (max 3°C on Sat afternoon, min -8°C on Sun night). Winds decreasing (strong winds from the W on Sun afternoon, light winds from the WSW by Mon night). | |||||||||||||||||
Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  | |  | |  | | |  |  |  | | |  | |
light snow | some clouds | mod. snow | light snow | light snow | cloudy | some clouds | cloudy | cloudy | light rain | light rain | mod. snow | mod. snow | snow shwrs | heavy snow | snow shwrs | light snow | snow shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
4 | — | 6 | 3 | 1 | — | — | — | — | — | — | 9 | 7 | 2 | 11 | 2 | 5 | 8 | |
— | — | — | — | — | — | — | — | — | 0.3 | 1.2 | 4 | — | — | — | — | — | — | |
max °C | -1 | -1 | -2 | -4 | -3 | -3 | -2 | -1 | 2 | 2 | 3 | 3 | 0 | -3 | -6 | -7 | -7 | -8 |
min °C | -1 | -1 | -4 | -4 | -4 | -4 | -3 | -2 | 0 | 2 | 2 | 1 | -1 | -5 | -8 | -8 | -7 | -8 |
-4 | -4 | -10 | -9 | -9 | -7 | -3 | -2 | -3 | -2 | -2 | -4 | -9 | -13 | -16 | -16 | -15 | -15 | |
1350 | 1400 | 1100 | 950 | 1000 | 950 | 1050 | 1250 | 1550 | 2450 | 2100 | 1950 | 1550 | 1100 | 650 | 550 | 550 | 300 | |
Cloud base (m) | 550 | 600 | 600 | 650 | 600 | 600 | 600 | 700 | 750 | 600 | 600 | 600 | 550 | 550 | 600 | 600 | 650 | 600 |
 | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 7:35 | — | — | 6:33 | — | — |
 | — | 5:55 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 7:01 | — | — | 6:04 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A moderate fall of snow, heaviest on Wed morning. Freeze-thaw conditions (max 2°C on Fri night, min -4°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 5mm) on Sat night. Becoming colder with heavy fall of snow, heaviest during Sun morning. Freeze-thaw conditions (max 3°C on Sat afternoon, min -8°C on Sun night). Winds decreasing (strong winds from the W on Sun afternoon, light winds from the WSW by Mon night).
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.