– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Sun 07 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Sun 07 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sun 07 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA heavy fall of snow, heaviest during Tue morning. Freeze-thaw conditions (max 2°C on Mon afternoon, min -4°C on Tue night). Winds decreasing (fresh winds from the WSW on Tue afternoon, light winds from the NW by Wed afternoon). | Days 5–7 Weather SummaryMostly dry. Very mild (max 12°C on Sat afternoon, min 1°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  | | | |  |  | | | | | | | | | |
some clouds | cloudy | cloudy | mod. snow | mod. snow | light snow | mod. snow | light snow | some clouds | clear | clear | clear | clear | some clouds | clear | clear | clear | clear | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | 6 | 7 | 3 | 6 | 2 | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 0 | 1 | 2 | 1 | -1 | -1 | -2 | -3 | 0 | 2 | 4 | 6 | 7 | 7 | 9 | 9 | 10 | 12 | 13 |
min °C | 0 | 0 | 2 | 0 | -1 | -2 | -4 | -4 | -2 | 1 | 3 | 6 | 7 | 7 | 8 | 8 | 9 | 12 | 13 |
-4 | -5 | -3 | -5 | -6 | -8 | -10 | -10 | -5 | -2 | 1 | 4 | 6 | 5 | 6 | 6 | 6 | 11 | 12 | |
2100 | 2200 | 2400 | 2250 | 1900 | 1900 | 1550 | 1550 | 2050 | 2950 | 3200 | 3250 | 3450 | 3650 | 3700 | 3450 | 3750 | 3850 | 3900 | |
Cloud base (m) | 2550 | 2550 | 550 | 600 | 600 | 600 | 600 | 650 | 8550 | 9600 | |||||||||
 | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:03 | — | — | 5:03 | — | — |
 | — | — | — | 9:07 | — | — | 9:07 | — | — | 9:08 | — | — | 9:09 | — | — | 9:09 | — | — | 9:10 |
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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 Tue morning. Freeze-thaw conditions (max 2°C on Mon afternoon, min -4°C on Tue night). Winds decreasing (fresh winds from the WSW on Tue afternoon, light winds from the NW by Wed afternoon).
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 12°C on Sat afternoon, min 1°C on Wed 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.