– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Thu 18 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Thu 18 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Thu 18 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Very mild (max 16°C on Fri afternoon, min 9°C on Sat morning). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 18°C on Mon afternoon, min 10°C on Wed morning). Wind will be generally light. | ||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | | |  | | | | |  | | | |  |  | | | | |  | |
clear | clear | clear | clear | clear | clear | clear | clear | rain shwrs | clear | clear | clear | some clouds | some clouds | some clouds | some clouds | clear | some clouds | rain shwrs | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | 0.1 | — | — | — | — | — | — | — | — | — | 0.1 |
max °C | 15 | 14 | 16 | 15 | 9 | 12 | 11 | 11 | 14 | 15 | 16 | 18 | 18 | 17 | 18 | 18 | 12 | 11 | 9 |
min °C | 15 | 14 | 16 | 11 | 9 | 11 | 9 | 10 | 13 | 14 | 16 | 18 | 18 | 17 | 18 | 13 | 10 | 11 | 5 |
chill °C | 15 | 14 | 16 | 10 | 8 | 10 | 8 | 9 | 12 | 13 | 16 | 18 | 18 | 17 | 18 | 12 | 10 | 10 | 4 |
Freezing level m | 3800 | 3700 | 3800 | 3500 | 3250 | 3400 | 3200 | 3200 | 3450 | 3500 | 3550 | 3750 | 3900 | 3850 | 3950 | 3750 | 3350 | 3250 | 3050 |
Cloud base (m) | 9300 | 2450 | 9200 | 6400 | 6200 | 7000 | 3400 | 2100 | 6400 | ||||||||||
 | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — |
 | — | — | — | 9:13 | — | — | 9:14 | — | — | 9:14 | — | — | 9:14 | — | — | 9:14 | — | — | 9:14 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Very mild (max 16°C on Fri afternoon, min 9°C on Sat morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 18°C on Mon afternoon, min 10°C on Wed morning). 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.