– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Wed 17 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Wed 17 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Wed 17 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Very mild (max 15°C on Fri afternoon, min 8°C on Wed night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Warm (max 20°C on Mon afternoon, min 11°C on Sat afternoon). Wind will be generally light. | ||||||||||||||||
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | | | | | | | | |  | | | | | |
clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | rain shwrs | clear | clear | clear | clear | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | 0.2 | — | — | — | — | |
max °C | 9 | 9 | 11 | 14 | 14 | 13 | 15 | 14 | 9 | 13 | 13 | 13 | 16 | 16 | 17 | 20 | 19 |
min °C | 9 | 8 | 10 | 14 | 14 | 13 | 15 | 9 | 8 | 11 | 12 | 12 | 15 | 16 | 17 | 19 | 18 |
7 | 8 | 10 | 14 | 14 | 13 | 15 | 8 | 7 | 10 | 12 | 12 | 15 | 16 | 17 | 19 | 18 | |
3350 | 3600 | 3700 | 3900 | 4000 | 3800 | 3700 | 3250 | 3400 | 3450 | 3250 | 3350 | 3550 | 3750 | 3700 | 3950 | 4100 | |
Cloud base (m) | 8500 | 2300 | 2800 | 9400 | 9150 | 9550 | |||||||||||
 | — | — | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | 9:13 | — | — | 9:13 | — | — | 9:13 | — | — | 9:14 | — | — | 9:14 | — | — | 9:14 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Very mild (max 15°C on Fri afternoon, min 8°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Warm (max 20°C on Mon afternoon, min 11°C on Sat afternoon). 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.