– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Fri 22 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Fri 22 May Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Fri 22 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Mon afternoon. Freeze-thaw conditions (max 6°C on Fri night, min -2°C on Mon afternoon). Winds increasing (light winds from the WSW on Fri night, near gales from the SSW by Sun night). | Days 5–7 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 2°C on Wed afternoon, min -4°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | | |  | | |  |  | |  | | |  | |  | |  | | | |
some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | cloudy | light snow | light snow | snow shwrs | some clouds | some clouds | clear | some clouds | rain shwrs | some clouds | clear | some clouds | some clouds | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | 2 | 4 | 4 | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 0.1 | — | — | — | — | |
max °C | 6 | 4 | 5 | 4 | 2 | 4 | 4 | -1 | -1 | -2 | -3 | -1 | 0 | 1 | 2 | 2 | 0 | 2 | 1 |
min °C | 4 | 4 | 5 | 2 | 1 | 3 | 1 | -1 | -2 | -4 | -4 | -2 | 0 | 0 | 1 | 1 | 0 | 1 | -4 |
1 | 0 | 1 | -3 | -4 | -1 | -7 | -10 | -10 | -4 | -8 | -5 | -4 | -3 | -3 | -3 | -3 | -2 | -10 | |
2850 | 2800 | 2900 | 2650 | 2550 | 2750 | 2500 | 1850 | 1900 | 1500 | 1550 | 1950 | 2150 | 2300 | 2600 | 2400 | 2150 | 2450 | 1750 | |
Cloud base (m) | 2700 | 2350 | 6350 | 3250 | 2850 | 2700 | 700 | 550 | 600 | 700 | 800 | 2200 | 900 | 1500 | 1700 | 600 | 800 | 850 | |
 | — | 5:16 | — | — | 5:16 | — | — | 5:15 | — | — | 5:13 | — | — | 5:13 | — | — | 5:11 | — | — |
 | — | — | — | 8:52 | — | — | 8:52 | — | — | 8:53 | — | — | 8:54 | — | — | 8:57 | — | — | 8:58 |
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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 mostly falling on Mon afternoon. Freeze-thaw conditions (max 6°C on Fri night, min -2°C on Mon afternoon). Winds increasing (light winds from the WSW on Fri night, near gales from the SSW by Sun night).
South Twin Sister Weather (Days 3-6):
A dusting of new snow. Freeze-thaw conditions (max 2°C on Wed afternoon, min -4°C on Mon night). 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.
| 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.