– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Sat 23 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sat 23 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sat 23 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 6mm) at first, then becoming colder with a dusting of snow on Mon night. Mild temperatures (max 9°C on Sat afternoon, min 1°C on Mon night). Winds decreasing (strong winds from the SSE on Mon morning, calm by Mon night). | Days 5–7 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 10°C on Wed afternoon, min 3°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | |  |  | |  |  | |  | | | | |
rain shwrs | some clouds | some clouds | some clouds | light rain | light rain | light rain | snow shwrs | cloudy | rain shwrs | rain shwrs | clear | some clouds | clear | some clouds | some clouds | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | |
0.1 | — | — | — | 0.1 | 2 | 4 | — | — | 1.6 | 0.4 | — | — | — | — | — | — | |
max °C | 9 | 6 | 6 | 9 | 9 | 4 | 3 | 2 | 2 | 3 | 4 | 6 | 10 | 9 | 8 | 10 | 10 |
min °C | 8 | 4 | 4 | 7 | 6 | 3 | 2 | 1 | 1 | 3 | 4 | 5 | 9 | 8 | 8 | 10 | 6 |
6 | 2 | 2 | 5 | 1 | -3 | -4 | 1 | -1 | 1 | 4 | 3 | 8 | 7 | 8 | 10 | 4 | |
2900 | 2600 | 2550 | 2800 | 2600 | 2100 | 1900 | 1750 | 1850 | 2100 | 2750 | 3450 | 3650 | 3750 | 3600 | 3500 | 3350 | |
Cloud base (m) | 6450 | 8900 | 2100 | 2950 | 2800 | 1650 | 600 | 1550 | 700 | 650 | 2000 | 900 | 2100 | 8950 | 7050 | 6850 | 5650 |
 | — | — | 5:16 | — | — | 5:15 | — | — | 5:13 | — | — | 5:13 | — | — | 5:11 | — | — |
 | — | 8:52 | — | — | 8:52 | — | — | 8:53 | — | — | 8:54 | — | — | 8:57 | — | — | 8:58 |
Loading...
South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 6mm) at first, then becoming colder with a dusting of snow on Mon night. Mild temperatures (max 9°C on Sat afternoon, min 1°C on Mon night). Winds decreasing (strong winds from the SSE on Mon morning, calm by Mon night).
South Twin Sister Weather (Days 3-6):
Light rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 10°C on Wed afternoon, min 3°C on Tue afternoon). 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.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 |
* 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.