– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Sat 20 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Sat 20 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Sat 20 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Very mild (max 17°C on Mon afternoon, min 8°C on Sat morning). Wind will be generally light. | Days 4–6 Weather SummarySome drizzle, heaviest during Thu night. Very mild (max 16°C on Tue afternoon, min 5°C on Thu night). Wind will be generally light. | |||||||||||||||||
Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  | | |  |  | | | | | | | | |  | |
clear | clear | clear | clear | rain shwrs | clear | clear | some clouds | some clouds | some clouds | clear | clear | some clouds | some clouds | clear | some clouds | some clouds | light rain | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | 0.2 | — | — | — | — | — | — | — | — | — | — | — | — | 1.7 |
max °C | 9 | 12 | 11 | 10 | 13 | 14 | 15 | 17 | 17 | 15 | 16 | 16 | 12 | 13 | 12 | 8 | 11 | 9 |
min °C | 8 | 11 | 9 | 9 | 12 | 13 | 14 | 16 | 15 | 15 | 16 | 14 | 11 | 13 | 9 | 8 | 11 | 5 |
chill °C | 7 | 10 | 7 | 8 | 11 | 12 | 14 | 16 | 15 | 15 | 16 | 14 | 11 | 13 | 9 | 8 | 10 | 2 |
Freezing level m | 3150 | 3200 | 3100 | 3150 | 3300 | 3350 | 3400 | 3650 | 3700 | 3500 | 3750 | 3700 | 3550 | 3550 | 3650 | 3750 | 3700 | 3300 |
Cloud base (m) | 2450 | 8800 | 6150 | 8550 | 8950 | 6950 | 1600 | |||||||||||
 | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | — | 9:14 | — | — | 9:14 | — | — | 9:14 | — | — | 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 17°C on Mon afternoon, min 8°C on Sat morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Some drizzle, heaviest during Thu night. Very mild (max 16°C on Tue afternoon, min 5°C on Thu night). 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.