– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Fri 24 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Fri 24 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Fri 24 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Temperatures will be below freezing (max 0°C on Sun afternoon, min -3°C on Fri night). Wind will be generally light. | Days 5–7 Weather SummaryA moderate fall of snow, heaviest on Mon night. Freeze-thaw conditions (max 3°C on Wed night, min -4°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | | | | |  |  |  | |  | | |  | | |  | |
some clouds | clear | some clouds | clear | clear | some clouds | clear | some clouds | cloudy | mod. snow | light snow | cloudy | some clouds | clear | clear | cloudy | cloudy | light snow | heavy snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | 9 | 3 | — | — | — | — | — | — | 1 | 11 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.8 | — | |
max °C | -2 | -3 | -1 | -1 | -2 | 0 | 0 | -2 | -3 | -3 | -4 | -3 | -2 | 0 | 2 | 3 | 2 | 2 | -1 |
min °C | -3 | -3 | -1 | -2 | -2 | -1 | -2 | -3 | -3 | -4 | -4 | -4 | -3 | -1 | 2 | 3 | 1 | 1 | -1 |
-8 | -8 | -4 | -6 | -6 | -4 | -5 | -7 | -8 | -8 | -4 | -7 | -6 | -3 | 2 | 0 | -3 | 1 | -3 | |
1800 | 1850 | 2050 | 1950 | 1950 | 2100 | 2000 | 1600 | 1650 | 1450 | 1400 | 1500 | 1600 | 2150 | 2500 | 2550 | 2350 | 2350 | 1850 | |
Cloud base (m) | 3350 | 2800 | 3050 | 3200 | 2450 | 2200 | 900 | 800 | 600 | 600 | 600 | 1550 | 1000 | 2100 | 2550 | 5350 | 2300 | 550 | |
 | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — |
 | — | — | — | 8:13 | — | — | 8:15 | — | — | 8:15 | — | — | 8:17 | — | — | 8:19 | — | — | 8:21 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Temperatures will be below freezing (max 0°C on Sun afternoon, min -3°C on Fri night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
A moderate fall of snow, heaviest on Mon night. Freeze-thaw conditions (max 3°C on Wed night, min -4°C on Mon night). Wind will be generally light.
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.