– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Tue 08 Sep Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Tue 08 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Tue 08 Sep 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 11°C on Wed morning, min 1°C on Fri morning). Winds decreasing (fresh winds from the WSW on Wed night, calm by Fri morning). | Days 5–7 Weather SummaryMostly dry. Mild temperatures (max 7°C on Sat afternoon, min 4°C on Fri night). Wind will be generally light. | |||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  | |  | | | | | | | | |
clear | clear | some clouds | rain shwrs | rain shwrs | rain shwrs | some clouds | some clouds | light rain | rain shwrs | clear | some clouds | clear | clear | clear | clear | |
Cloud base (m) | 6450 | 8950 | 600 | 1900 | 2400 | 800 | 900 | 3100 | 5350 | 2750 | 2050 | |||||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | 0.1 | 0.2 | 0.1 | — | — | 0.1 | 0.1 | — | — | — | — | — | — |
max °C | 10 | 11 | 11 | 11 | 5 | 5 | 4 | 1 | 3 | 5 | 6 | 7 | 6 | 4 | 6 | 6 |
min °C | 9 | 10 | 11 | 6 | 4 | 4 | 2 | 1 | 2 | 4 | 6 | 7 | 4 | 4 | 6 | 6 |
chill °C | 9 | 8 | 9 | 1 | 0 | 0 | -1 | 1 | 0 | 1 | 3 | 5 | 2 | 3 | 5 | 6 |
Freezing level m | 4000 | 4350 | 4150 | 3650 | 3000 | 2900 | 2450 | 2450 | 2700 | 2850 | 2900 | 2900 | 2900 | 3000 | 3100 | 3250 |
 | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — |
 | — | — | 7:34 | — | — | 7:30 | — | — | 7:29 | — | — | 7:27 | — | — | 7:24 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Very mild (max 11°C on Wed morning, min 1°C on Fri morning). Winds decreasing (fresh winds from the WSW on Wed night, calm by Fri morning).
South Twin Sister Weather (Days 3-6):
Mostly dry. Mild temperatures (max 7°C on Sat afternoon, min 4°C on Fri 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.