– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Thu 09 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Thu 09 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Thu 09 Jul 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 Fri afternoon. Mild temperatures (max 8°C on Thu afternoon, min 1°C on Sat night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Very mild (max 14°C on Mon night, min 2°C on Sun morning). Wind will be generally light. | |||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | | | |  | |  | | | | | | | |
some clouds | some clouds | some clouds | light rain | rain shwrs | light rain | rain shwrs | light rain | some clouds | clear | clear | clear | clear | clear | some clouds | clear | clear | clear | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | 0.1 | 1.1 | 1 | 0.5 | 0.3 | — | — | — | — | — | — | — | — | — | — |
max °C | 7 | 8 | 8 | 5 | 6 | 6 | 2 | 3 | 3 | 4 | 7 | 9 | 10 | 13 | 14 | 13 | 13 | 12 |
min °C | 6 | 7 | 6 | 5 | 5 | 4 | 2 | 3 | 1 | 2 | 6 | 8 | 9 | 12 | 13 | 12 | 13 | 8 |
chill °C | 3 | 4 | 3 | 2 | 2 | -1 | -4 | -2 | -4 | -2 | 3 | 7 | 8 | 10 | 11 | 10 | 11 | 5 |
Freezing level m | 3400 | 3450 | 3150 | 3050 | 3250 | 3050 | 2650 | 2750 | 2450 | 2850 | 3350 | 3600 | 3850 | 4150 | 4350 | 4250 | 4200 | 3850 |
Cloud base (m) | 2500 | 2850 | 1600 | 850 | 1700 | 650 | 1750 | 2200 | 6950 | 5550 | ||||||||
 | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — |
 | — | — | 9:09 | — | — | 9:09 | — | — | 9:08 | — | — | 9:07 | — | — | 9:07 | — | — | 9:07 |
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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 Fri afternoon. Mild temperatures (max 8°C on Thu afternoon, min 1°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 14°C on Mon night, min 2°C on Sun 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.