– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Mon 03 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Mon 03 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Mon 03 Aug 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 Wed afternoon, min 9°C on Mon afternoon). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 15°C on Thu afternoon, min 8°C on Sat morning). Wind will be generally light. | ||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||
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 | clear | clear | clear | clear | clear | |
Cloud base (m) | 8500 | 9000 | |||||||||||||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 10 | 11 | 11 | 13 | 14 | 13 | 15 | 15 | 14 | 15 | 14 | 10 | 10 | 10 | 8 | 10 | 10 |
min °C | 9 | 10 | 11 | 13 | 13 | 13 | 15 | 15 | 14 | 15 | 11 | 9 | 9 | 9 | 8 | 10 | 9 |
chill °C | 8 | 10 | 11 | 13 | 13 | 13 | 15 | 14 | 14 | 14 | 9 | 7 | 7 | 7 | 6 | 9 | 8 |
Freezing level m | 3750 | 3800 | 3850 | 4150 | 4350 | 4400 | 4550 | 4550 | 4500 | 4500 | 4100 | 3850 | 3850 | 3800 | 3850 | 3950 | 4050 |
 | — | — | 5:45 | — | — | 5:46 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — |
 | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:37 | — | — | 8:37 | — | — | 8:35 |
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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 Wed afternoon, min 9°C on Mon afternoon). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 15°C on Thu afternoon, min 8°C on Sat morning). 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.