– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Thu 23 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Thu 23 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Thu 23 Jul Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Very mild (max 13°C on Thu morning, min 5°C on Sat night). Winds increasing (calm on Thu morning, fresh winds from the S by Sat afternoon). | Days 4–6 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Mild temperatures (max 9°C on Mon afternoon, min 5°C on Sun night). Winds decreasing (strong winds from the SSW on Sun night, light winds from the SSW by Tue night). | |||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | |  | |  | |  | | | | |  | | | |
clear | clear | clear | clear | clear | clear | rain shwrs | rain shwrs | rain shwrs | clear | light rain | rain shwrs | rain shwrs | rain shwrs | clear | some clouds | rain shwrs | clear | |
Cloud base (m) | 4700 | 1850 | 2000 | 2250 | 1900 | 1650 | 2100 | 2450 | 800 | 1500 | 2300 | 2000 | ||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | 0.1 | 0.3 | 0.4 | — | 0.1 | 2 | 0.5 | 0.1 | — | — | 0.1 | — |
max °C | 13 | 12 | 12 | 11 | 12 | 12 | 7 | 7 | 6 | 7 | 8 | 6 | 6 | 9 | 9 | 7 | 9 | 8 |
min °C | 12 | 12 | 11 | 10 | 12 | 8 | 7 | 6 | 5 | 6 | 7 | 5 | 5 | 8 | 8 | 7 | 8 | 8 |
chill °C | 12 | 12 | 10 | 9 | 11 | 5 | 3 | 1 | 1 | 3 | 2 | 1 | 2 | 5 | 5 | 4 | 5 | 6 |
Freezing level m | 4300 | 4300 | 4100 | 4050 | 4050 | 3600 | 3250 | 3050 | 3400 | 3450 | 3150 | 2950 | 3600 | 3850 | 3850 | 3600 | 3600 | 3900 |
 | 5:28 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — |
 | — | — | 8:58 | — | — | 8:57 | — | — | 8:54 | — | — | 8:53 | — | — | 8:52 | — | — | 8:51 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Very mild (max 13°C on Thu morning, min 5°C on Sat night). Winds increasing (calm on Thu morning, fresh winds from the S by Sat afternoon).
South Twin Sister Weather (Days 3-6):
Light rain (total 3mm), mostly falling on Sun night. Mild temperatures (max 9°C on Mon afternoon, min 5°C on Sun night). Winds decreasing (strong winds from the SSW on Sun night, light winds from the SSW by Tue night).
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 | | ||||
BUOY-46118 | |||||
SHIP5575 | |||||
SHIP7428 | |||||
SHIP1681 | |||||
SHIP6004 |
* 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.