– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Tue 30 Jun Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Tue 30 Jun Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Tue 30 Jun Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Mild temperatures (max 5°C on Thu afternoon, min 2°C on Tue night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 3mm), mostly falling on Fri afternoon. Mild temperatures (max 9°C on Sun afternoon, min 2°C on Sat morning). Wind will be generally light. | |||||||||||||||||
Tuesday 30 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  | | | | | | | | | |  |  | |  | |
rain shwrs | rain shwrs | rain shwrs | cloudy | light rain | rain shwrs | cloudy | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | some clouds | clear | clear | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 0.2 | 0.7 | 0.3 | — | 0.3 | 0.1 | — | 0.1 | 1.1 | 0.4 | 1.6 | 0.6 | 0.1 | 0.1 | — | — | — | — |
max °C | 3 | 3 | 3 | 2 | 3 | 3 | 4 | 5 | 4 | 4 | 4 | 5 | 2 | 4 | 4 | 6 | 9 | 9 |
min °C | 3 | 3 | 2 | 2 | 2 | 3 | 3 | 4 | 3 | 3 | 4 | 3 | 2 | 3 | 4 | 4 | 8 | 8 |
chill °C | 0 | 0 | -2 | 0 | -1 | 0 | -1 | 2 | 0 | 0 | 1 | -1 | -2 | -1 | 0 | 2 | 7 | 7 |
Freezing level m | 3100 | 3000 | 2700 | 2650 | 2800 | 2950 | 2850 | 2900 | 2750 | 2850 | 2950 | 2900 | 2600 | 2900 | 3050 | 3450 | 3650 | 3850 |
Cloud base (m) | 600 | 800 | 1950 | 800 | 750 | 2350 | 1900 | 1700 | 850 | 900 | 750 | 650 | 900 | 1950 | 1850 | 9050 | ||
 | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — |
 | — | — | 9:14 | — | — | 9:14 | — | — | 9:13 | — | — | 9:13 | — | — | 9:13 | — | — | 9:12 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 3mm), mostly falling on Thu night. Mild temperatures (max 5°C on Thu afternoon, min 2°C on Tue night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 3mm), mostly falling on Fri afternoon. Mild temperatures (max 9°C on Sun afternoon, min 2°C on Sat morning). 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 |
|---|---|---|---|---|---|
 | |||||
Bellingham Airport |  | ||||
* 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.