– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Mon 18 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Mon 18 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Mon 18 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Mild temperatures (max 9°C on Wed night, min 2°C on Mon morning). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Very mild (max 12°C on Fri afternoon, min 7°C on Sat morning). Wind will be generally light. | |||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | | | | |  |  | | | | | | | |
some clouds | some clouds | some clouds | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | some clouds | some clouds | clear | clear | clear | clear | some clouds | clear | clear | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | 0.2 | 1 | 1.1 | 0.1 | 0.1 | — | — | — | — | — | — | — | — | — | — | |
max °C | 2 | 4 | 4 | 2 | 3 | 3 | 4 | 7 | 9 | 9 | 11 | 10 | 9 | 12 | 11 | 7 | 10 | 9 |
min °C | 2 | 4 | 2 | 2 | 2 | 3 | 3 | 5 | 8 | 9 | 11 | 9 | 9 | 11 | 8 | 7 | 9 | 9 |
0 | 2 | -1 | 0 | 0 | 1 | 3 | 4 | 7 | 9 | 10 | 9 | 9 | 10 | 6 | 6 | 7 | 8 | |
1900 | 2100 | 2050 | 1900 | 1950 | 2300 | 2500 | 2900 | 2950 | 3000 | 3000 | 2950 | 3100 | 3200 | 3000 | 3000 | 3100 | 3200 | |
Cloud base (m) | 1950 | 2000 | 2050 | 600 | 600 | 850 | 1600 | 950 | 6800 | 4900 | 8950 | 2700 | 2700 | 6800 | 8650 | |||
 | 5:22 | — | — | 5:22 | — | — | 5:20 | — | — | 5:18 | — | — | 5:18 | — | — | 5:16 | — | — |
 | — | — | 8:45 | — | — | 8:46 | — | — | 8:47 | — | — | 8:50 | — | — | 8:51 | — | — | 8:52 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 3mm), mostly falling on Tue night. Mild temperatures (max 9°C on Wed night, min 2°C on Mon morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 12°C on Fri afternoon, min 7°C on Sat morning). 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.