– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Tue 28 Apr Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Tue 28 Apr Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Tue 28 Apr 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 5°C on Wed night, min -3°C on Tue afternoon). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 12°C on Sun night, min 4°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 1 | Saturday 2 | Sunday 3 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | |  | | | | | | | | | | | |
cloudy | some clouds | clear | clear | clear | clear | some clouds | some clouds | some clouds | cloudy | some clouds | some clouds | some clouds | clear | clear | clear | clear | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -3 | -1 | 1 | 4 | 5 | 4 | 5 | 5 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 12 |
min °C | -3 | -2 | 0 | 3 | 4 | 4 | 5 | 4 | 3 | 4 | 4 | 5 | 7 | 9 | 10 | 11 | 11 |
-3 | -5 | 0 | 3 | 4 | 2 | 2 | 2 | 1 | 2 | 2 | 3 | 6 | 7 | 10 | 11 | 11 | |
1600 | 1850 | 2250 | 2650 | 2850 | 2800 | 2850 | 2750 | 2650 | 2700 | 2850 | 2900 | 3050 | 3300 | 3500 | 3600 | 3750 | |
Cloud base (m) | 600 | 1550 | 1650 | 2200 | 9100 | 7950 | 6650 | 6500 | 3050 | 3100 | 2500 | ||||||
 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:46 | — | — | 5:45 | — | — |
 | — | 8:17 | — | — | 8:19 | — | — | 8:21 | — | — | 8:22 | — | — | 8:23 | — | — | 8:24 |
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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 5°C on Wed night, min -3°C on Tue afternoon). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 12°C on Sun night, min 4°C on Fri 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.