– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 am Mon 02 Feb Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Mon 02 Feb Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Mon 02 Feb Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA light covering of new snow on Mon morning turning to drizzle on Mon afternoon. Freeze-thaw conditions (max 11°C on Wed morning, min -1°C on Mon morning). Wind will be generally light. | Days 4–6 Weather SummaryDrizzle at first, then turning colder with dusting of snow on Sat night. Very mild (max 13°C on Thu afternoon, min 2°C on Sat night). Wind will be generally light. | |||||||||||||||||
Monday 2 | Tuesday 3 | Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | | |  |  |  | | | | | |  | | |  | |
light snow | light snow | rain shwrs | cloudy | cloudy | rain shwrs | some clouds | clear | clear | clear | clear | clear | some clouds | some clouds | cloudy | some clouds | clear | light snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
5 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | |
— | 0.8 | 0.1 | — | — | 0.2 | — | — | — | — | — | — | — | — | — | — | — | 1.3 | |
max °C | 0 | 3 | 4 | 7 | 7 | 9 | 11 | 10 | 11 | 12 | 13 | 13 | 8 | 7 | 6 | 5 | 4 | 4 |
min °C | -1 | 1 | 3 | 5 | 7 | 7 | 10 | 10 | 10 | 12 | 13 | 9 | 8 | 7 | 5 | 4 | 4 | 2 |
-6 | -4 | 2 | 3 | 4 | 4 | 8 | 8 | 9 | 12 | 13 | 9 | 6 | 4 | 3 | 2 | 1 | -4 | |
1350 | 1800 | 2300 | 2650 | 2750 | 2800 | 3250 | 3250 | 3300 | 3450 | 3600 | 3550 | 3300 | 3100 | 2600 | 2500 | 2250 | 2200 | |
Cloud base (m) | 650 | 600 | 900 | 1950 | 2100 | 4650 | 8400 | 8350 | 9300 | 6550 | 6300 | 7550 | 4850 | 1650 | ||||
 | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — |
 | — | 5:07 | — | — | 5:08 | — | — | 5:10 | — | — | 5:12 | — | — | 5:14 | — | — | 5:15 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A light covering of new snow on Mon morning turning to drizzle on Mon afternoon. Freeze-thaw conditions (max 11°C on Wed morning, min -1°C on Mon morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Drizzle at first, then turning colder with dusting of snow on Sat night. Very mild (max 13°C on Thu afternoon, min 2°C on Sat 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.