– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Wed 01 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Wed 01 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Wed 01 Apr Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA moderate fall of snow, heaviest on Wed night. Temperatures will be below freezing (max -1°C on Sat morning, min -7°C on Wed night). Mainly fresh winds. | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 6°C on Sun afternoon, min 0°C on Sat afternoon). Wind will be generally light. | ||||||||||||||||
Wed 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | |  |  |  |  | |  | | | | | | | | |
light snow | heavy snow | light snow | light snow | light snow | cloudy | some clouds | some clouds | some clouds | clear | some clouds | clear | some clouds | some clouds | some clouds | some clouds | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
1 | 14 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -4 | -4 | -5 | -5 | -5 | -5 | -4 | -2 | -1 | 1 | 4 | 5 | 6 | 6 | 6 | 6 | 6 |
min °C | -5 | -7 | -6 | -5 | -5 | -6 | -4 | -4 | -2 | 0 | 2 | 4 | 5 | 6 | 6 | 6 | 4 |
-13 | -13 | -11 | -12 | -11 | -11 | -9 | -10 | -7 | -3 | 0 | 3 | 5 | 5 | 4 | 3 | 0 | |
1400 | 1000 | 1050 | 1150 | 1100 | 1150 | 1350 | 1400 | 1750 | 2250 | 2700 | 2850 | 3000 | 3000 | 2950 | 2900 | 2800 | |
Cloud base (m) | 500 | 550 | 600 | 600 | 600 | 650 | 800 | 800 | 850 | 1000 | 5600 | 8850 | 7000 | 6050 | 7000 | ||
 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — |
 | 7:37 | — | — | 7:38 | — | — | 7:40 | — | — | 7:42 | — | — | 7:44 | — | — | 7:45 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A moderate fall of snow, heaviest on Wed night. Temperatures will be below freezing (max -1°C on Sat morning, min -7°C on Wed night). Mainly fresh winds.
South Twin Sister Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 6°C on Sun afternoon, min 0°C on Sat afternoon). 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 |
|---|---|---|---|---|---|
 | |||||
SHIP3484 |
* 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.