– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Fri 26 Apr Local TimeUpdates in: hr min sUpdate imminent
South Twin SisterWeather Forecast, United States
Issued: 10 am Fri 26 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Fri 26 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryHeavy rain (total 41mm), heaviest during Sun afternoon. Later becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 9°C on Fri afternoon, min 0°C on Sun night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 6mm) at first, then becoming colder with a dusting of snow on Mon night. Freeze-thaw conditions (max 11°C on Wed afternoon, min 0°C on Mon night). Wind will be generally light. | |||||||||||||||||
Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 1 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  | |  |  |  | | | | |  |  | | | |
light rain | light rain | light rain | mod. rain | light rain | mod. rain | light rain | heavy rain | snow shwrs | rain shwrs | rain shwrs | snow shwrs | light rain | light rain | rain shwrs | some clouds | light rain | rain shwrs | |
km/h | ||||||||||||||||||
Wave Height Map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | 1.0 | — | — | 1.0 | — | — | — | — | — | — | |
1.4 | 0.8 | 3 | 6 | 4 | 8 | 3 | 11 | 4 | 1.1 | 3 | 0.9 | 0.2 | 0.8 | 0.1 | — | 0.1 | 0.1 | |
max°C | 7 | 9 | 8 | 7 | 6 | 6 | 5 | 5 | 3 | 2 | 5 | 3 | 3 | 6 | 5 | 7 | 11 | 9 |
min°C | 7 | 8 | 7 | 6 | 6 | 5 | 4 | 4 | 0 | 1 | 4 | 0 | 2 | 5 | 1 | 5 | 9 | 6 |
6 | 8 | 7 | 4 | 4 | 3 | 2 | 3 | 0 | -1 | 3 | 0 | 2 | 4 | 1 | 5 | 9 | 6 | |
1550 | 1800 | 1700 | 1400 | 1350 | 1350 | 1150 | 1150 | 500 | 850 | 1100 | 800 | 950 | 1250 | 950 | 1400 | 1950 | 2200 | |
Cloud base (m) | 550 | 650 | 700 | 550 | 550 | 550 | 600 | 550 | 650 | 600 | 650 | 600 | 600 | 700 | 950 | 800 | 1000 | |
 | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:46 | — | — |
 | — | — | 8:15 | — | — | 8:17 | — | — | 8:19 | — | — | 8:21 | — | — | 8:22 | — | — | 8:23 |
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 41mm), heaviest during Sun afternoon. Later becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 9°C on Fri afternoon, min 0°C on Sun night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Mon night. Freeze-thaw conditions (max 11°C on Wed afternoon, min 0°C on Mon night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 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.
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