– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Sat 08 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sat 08 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sat 08 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 11°C on Sat afternoon, min 7°C on Mon morning). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 11°C on Thu night, min 7°C on Wed morning). Wind will be generally light. | ||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | | | | | | |  | |  |  | | | | |
clear | clear | clear | some clouds | clear | clear | clear | clear | clear | clear | some clouds | some clouds | rain shwrs | rain shwrs | clear | some clouds | clear | |
Cloud base (m) | 7000 | 8300 | 9300 | 9600 | 8650 | 3600 | 7100 | 2200 | 8050 | 2500 | |||||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 0.1 | 0.1 | — | — | — |
max °C | 11 | 11 | 9 | 10 | 10 | 7 | 10 | 10 | 9 | 10 | 10 | 8 | 8 | 8 | 8 | 10 | 11 |
min °C | 11 | 10 | 9 | 10 | 8 | 7 | 9 | 9 | 9 | 10 | 8 | 7 | 8 | 7 | 7 | 9 | 11 |
chill °C | 9 | 9 | 8 | 9 | 6 | 6 | 7 | 8 | 8 | 8 | 6 | 6 | 7 | 6 | 4 | 8 | 10 |
Freezing level m | 3850 | 4000 | 4000 | 3850 | 3800 | 3750 | 3850 | 3950 | 3850 | 3750 | 3700 | 3500 | 3400 | 3250 | 3350 | 3550 | 3850 |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — |
 | — | 8:35 | — | — | 8:32 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 |
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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 Sat afternoon, min 7°C on Mon morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 11°C on Thu night, min 7°C on Wed 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.