– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Wed 08 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Wed 08 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Wed 08 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Mild temperatures (max 9°C on Thu night, min 3°C on Wed afternoon). Wind will be generally light. | Days 5–7 Weather SummaryMild with light rain (total 6mm) on Sat afternoon Becoming colder with a light covering of snow, mostly falling on Tue morning. Freeze-thaw conditions (max 3°C on Sat afternoon, min -2°C on Mon night). Wind will be generally light. | ||||||||||||||||
Wed 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | |  |  |  |  | |  | | | | |  |  | |
clear | clear | clear | clear | clear | some clouds | cloudy | cloudy | light rain | light rain | light rain | some clouds | cloudy | cloudy | cloudy | light snow | light snow | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | |
— | — | — | — | — | — | — | — | 0.3 | 3 | 3 | — | — | — | — | — | — | |
max °C | 3 | 4 | 5 | 8 | 9 | 8 | 8 | 7 | 5 | 3 | 3 | 2 | 2 | 1 | -1 | -1 | -2 |
min °C | 3 | 3 | 5 | 8 | 8 | 8 | 8 | 5 | 3 | 2 | 2 | 2 | 1 | 0 | -1 | -1 | -2 |
1 | 3 | 4 | 8 | 7 | 7 | 8 | 5 | 3 | 2 | 0 | -1 | -1 | -3 | -4 | -5 | -6 | |
2100 | 2300 | 2450 | 2650 | 2700 | 2550 | 2600 | 2400 | 2100 | 2050 | 2000 | 1850 | 1750 | 1600 | 1300 | 1300 | 1200 | |
Cloud base (m) | 9050 | 9250 | 9250 | 6450 | 3300 | 2150 | 800 | 550 | 600 | 750 | 650 | 550 | 600 | 600 | 600 | ||
 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — |
 | 7:47 | — | — | 7:50 | — | — | 7:51 | — | — | 7:52 | — | — | 7:53 | — | — | 7:55 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Mild temperatures (max 9°C on Thu night, min 3°C on Wed afternoon). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mild with light rain (total 6mm) on Sat afternoon Becoming colder with a light covering of snow, mostly falling on Tue morning. Freeze-thaw conditions (max 3°C on Sat afternoon, min -2°C on Mon 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.