– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Fri 29 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Fri 29 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Fri 29 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Freeze-thaw conditions (max 10°C on Mon morning, min -2°C on Sat morning). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 14°C on Tue afternoon, min 3°C on Wed night). Wind will be generally light. | ||||||||||||||||
Fri 29 | Saturday 30 | Sunday 31 | Monday 1 | Tuesday 2 | Wednesday 3 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | | | | | | | | |  |  |  | |
clear | some clouds | some clouds | rain shwrs | clear | clear | clear | some clouds | some clouds | some clouds | some clouds | clear | clear | some clouds | cloudy | light rain | rain shwrs | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | 0.1 | — | — | — | — | — | — | — | — | — | — | — | 0.2 | 0.2 | |
max °C | 3 | 2 | -1 | 3 | 3 | 3 | 7 | 8 | 10 | 12 | 12 | 12 | 14 | 13 | 8 | 6 | 4 |
min °C | 2 | -1 | -2 | 1 | 1 | 1 | 6 | 7 | 9 | 11 | 11 | 11 | 14 | 11 | 7 | 5 | 3 |
-1 | -4 | -5 | -1 | -1 | -2 | 5 | 6 | 8 | 10 | 11 | 11 | 14 | 10 | 5 | 3 | 1 | |
2050 | 1550 | 1400 | 2000 | 1950 | 2250 | 2650 | 2750 | 2850 | 3000 | 3000 | 3000 | 3200 | 3050 | 2650 | 2450 | 2500 | |
Cloud base (m) | 2100 | 650 | 900 | 6950 | 1700 | 2200 | 6850 | 2800 | 8550 | 2900 | 6550 | 3050 | 2100 | 900 | |||
 | — | — | 5:11 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:07 | — | — |
 | — | 8:59 | — | — | 9:00 | — | — | 9:00 | — | — | 9:01 | — | — | 9:02 | — | — | 9:04 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Freeze-thaw conditions (max 10°C on Mon morning, min -2°C on Sat morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 14°C on Tue afternoon, min 3°C on Wed night). 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.