– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Sun 25 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sun 25 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sun 25 Jan 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 6°C on Tue afternoon, min -1°C on Mon morning). Winds increasing (calm on Sun morning, fresh winds from the S by Tue night). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Wed night. Becoming milder with moderate rain (total 17mm) on Thu night. Freeze-thaw conditions (max 3°C on Thu night, min 0°C on Wed morning). Winds decreasing (strong winds from the S on Thu night, calm by Fri night). | |||||||||||||||||
Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  | | | |  |  | |  | |  |  | | | | |
clear | clear | some clouds | some clouds | cloudy | some clouds | cloudy | cloudy | cloudy | light snow | light snow | heavy snow | light snow | light rain | light snow | light snow | light snow | light snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | 2 | 3 | 14 | 5 | — | 1 | 5 | 1 | 5 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | 0.3 | 15 | — | 1.1 | — | |
max °C | 0 | 1 | 0 | 0 | -1 | 2 | 5 | 6 | 0 | 0 | 1 | 0 | 1 | 2 | 3 | 1 | 2 | 2 |
min °C | 0 | 0 | 0 | -1 | -1 | 0 | 4 | 3 | -1 | 0 | 0 | 0 | 0 | 2 | 2 | 1 | 2 | 0 |
-3 | -3 | -4 | -6 | -5 | -4 | 1 | -3 | -9 | -7 | -8 | -7 | -7 | -4 | -5 | -6 | -3 | 0 | |
1500 | 1650 | 1500 | 1450 | 1350 | 1600 | 2100 | 2200 | 1350 | 1400 | 1550 | 1500 | 1500 | 1900 | 2050 | 1800 | 1850 | 1750 | |
Cloud base (m) | 8700 | 3250 | 2950 | 2100 | 5400 | 3150 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 700 | 600 | 600 | ||
 | 7:46 | — | — | 7:43 | — | — | 7:43 | — | — | 7:41 | — | — | 7:41 | — | — | 7:39 | — | — |
 | — | 4:54 | — | — | 4:55 | — | — | 4:58 | — | — | 4:59 | — | — | 5:00 | — | — | 5:02 | — |
Loading...
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Freeze-thaw conditions (max 6°C on Tue afternoon, min -1°C on Mon morning). Winds increasing (calm on Sun morning, fresh winds from the S by Tue night).
South Twin Sister Weather (Days 3-6):
A heavy fall of snow, heaviest during Wed night. Becoming milder with moderate rain (total 17mm) on Thu night. Freeze-thaw conditions (max 3°C on Thu night, min 0°C on Wed morning). Winds decreasing (strong winds from the S on Thu night, calm by Fri 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.