– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Thu 06 Nov Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Thu 06 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Thu 06 Nov Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 9°C on Sat night, min -6°C on Thu night). Winds decreasing (near gales from the SSW on Thu afternoon, calm by Fri night). | Days 4–6 Weather SummaryA light covering of new snow mostly falling on Sun night. Freeze-thaw conditions (max 9°C on Sun morning, min -4°C on Mon night). Winds decreasing (near gales from the SSW on Sun night, light winds from the WSW by Tue afternoon). | |||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | |  | |  |  | | | | | |  | |
light snow | mod. snow | heavy snow | snow shwrs | some clouds | clear | some clouds | some clouds | some clouds | some clouds | cloudy | mod. snow | light snow | snow shwrs | some clouds | some clouds | cloudy | cloudy | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
2 | 7 | 29 | 2 | — | — | — | — | — | — | — | 6 | 2 | 1 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -2 | -1 | -5 | -6 | -6 | -1 | 2 | 5 | 9 | 9 | 9 | 8 | 0 | -2 | -3 | -2 | 0 | 1 |
min°C | -3 | -1 | -6 | -6 | -6 | -5 | 1 | 4 | 6 | 9 | 9 | 1 | -1 | -2 | -4 | -3 | -1 | 0 |
-10 | -10 | -15 | -13 | -13 | -10 | -1 | 3 | 4 | 6 | 5 | -6 | -7 | -9 | -11 | -8 | -4 | -3 | |
1650 | 2000 | 1250 | 1200 | 1200 | 1100 | 2400 | 3150 | 3450 | 3550 | 3550 | 3200 | 2100 | 1850 | 1350 | 1300 | 1750 | 2200 | |
Cloud base (m) | 600 | 550 | 600 | 600 | 1850 | 700 | 4700 | 3250 | 4250 | 9000 | 5450 | 650 | 600 | 700 | 800 | 750 | 5900 | |
 | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — |
 | — | 4:38 | — | — | 4:37 | — | — | 4:36 | — | — | 4:35 | — | — | 4:34 | — | — | 4:31 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 9°C on Sat night, min -6°C on Thu night). Winds decreasing (near gales from the SSW on Thu afternoon, calm by Fri night).
South Twin Sister Weather (Days 3-6):
A light covering of new snow mostly falling on Sun night. Freeze-thaw conditions (max 9°C on Sun morning, min -4°C on Mon night). Winds decreasing (near gales from the SSW on Sun night, light winds from the WSW by Tue afternoon).
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.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
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* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.