– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 am Thu 05 Feb Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Thu 05 Feb Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Thu 05 Feb Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA light fall of snow, heaviest on Sat afternoon. Turning milder with light rain (total 6mm) on Sat night. Freeze-thaw conditions (max 16°C on Thu morning, min -3°C on Sat night). Winds increasing (light winds from the E on Thu morning, strong winds from the S by Sat night). | Days 4–6 Weather SummaryA light covering of new snow mostly falling on Sun night. Temperatures will be below freezing (max 0°C on Tue afternoon, min -3°C on Sun night). Wind will be generally light. | |||||||||||||||||
Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  |  | |  |  | |  |  | | | | | | |
clear | some clouds | clear | some clouds | some clouds | some clouds | mod. snow | mod. snow | snow shwrs | cloudy | some clouds | light snow | light snow | light snow | light snow | light snow | some clouds | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | 6 | 7 | 5 | — | — | 4 | 1 | 1 | 2 | 1 | — | — | |
— | — | — | — | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | |
max °C | 16 | 16 | 11 | 8 | 7 | 5 | 1 | 2 | 2 | -2 | -1 | -2 | -3 | -2 | -2 | -2 | 0 | 0 |
min °C | 15 | 13 | 9 | 7 | 6 | 4 | 1 | 1 | -3 | -2 | -1 | -3 | -3 | -3 | -2 | -2 | -1 | 0 |
15 | 12 | 7 | 4 | 2 | -2 | -6 | -6 | -9 | -4 | -1 | -6 | -7 | -9 | -9 | -6 | -4 | -2 | |
3700 | 3750 | 3200 | 2800 | 2650 | 2250 | 1850 | 1850 | 1250 | 1200 | 1300 | 1050 | 1050 | 1100 | 1100 | 1150 | 1400 | 1500 | |
Cloud base (m) | 8350 | 6350 | 6350 | 3200 | 1900 | 600 | 600 | 800 | 950 | 600 | 600 | 600 | 750 | 650 | 1900 | |||
 | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:26 | — | — | 7:24 | — | — | 7:22 | — | — |
 | — | 5:12 | — | — | 5:14 | — | — | 5:15 | — | — | 5:16 | — | — | 5:19 | — | — | 5:21 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A light fall of snow, heaviest on Sat afternoon. Turning milder with light rain (total 6mm) on Sat night. Freeze-thaw conditions (max 16°C on Thu morning, min -3°C on Sat night). Winds increasing (light winds from the E on Thu morning, strong winds from the S by Sat night).
South Twin Sister Weather (Days 3-6):
A light covering of new snow mostly falling on Sun night. Temperatures will be below freezing (max 0°C on Tue afternoon, min -3°C on Sun night). 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.