– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Mon 20 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Mon 20 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Mon 20 Jul 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 18°C on Wed night, min 13°C on Thu afternoon). Wind will be generally light. | Days 5–7 Weather SummarySome drizzle, heaviest during Sun afternoon. Very mild (max 12°C on Thu night, min 5°C on Sat morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | | |  | |  | | | | | |  |  | | |  | |
some clouds | clear | clear | clear | clear | clear | some clouds | some clouds | rain shwrs | clear | clear | clear | clear | clear | light rain | rain shwrs | rain shwrs | light rain | light rain | |
Cloud base (m) | 9350 | 9300 | 6400 | 5300 | 5500 | 5200 | 1900 | 2300 | 750 | 1600 | 900 | 1800 | 850 | ||||||
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | 0.2 | — | — | — | — | — | 0.4 | 0.2 | 0.1 | 0.8 | 0.5 |
max °C | 16 | 15 | 17 | 17 | 16 | 17 | 18 | 15 | 14 | 12 | 9 | 11 | 11 | 6 | 5 | 5 | 6 | 6 | 7 |
min °C | 15 | 15 | 17 | 16 | 16 | 17 | 16 | 14 | 13 | 9 | 9 | 11 | 8 | 5 | 5 | 5 | 5 | 6 | 6 |
chill °C | 15 | 15 | 17 | 16 | 16 | 17 | 16 | 14 | 12 | 7 | 7 | 9 | 5 | 1 | 2 | 2 | 3 | 3 | 3 |
Freezing level m | 4250 | 4350 | 4500 | 4550 | 4600 | 4550 | 4550 | 4400 | 4300 | 3950 | 3850 | 3950 | 3850 | 3200 | 3050 | 3400 | 3500 | 3550 | 3450 |
 | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — |
 | — | — | — | 9:00 | — | — | 8:59 | — | — | 8:58 | — | — | 8:57 | — | — | 8:54 | — | — | 8:53 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Very mild (max 18°C on Wed night, min 13°C on Thu afternoon). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Some drizzle, heaviest during Sun afternoon. Very mild (max 12°C on Thu night, min 5°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 |
|---|---|---|---|---|---|
SHIP6216 | |||||
 | |||||
Bellingham Airport |  | ||||
SHIP1681 | |||||
SHIP5862 | |||||
SHIP3496 | |||||
SHIP1076 | |||||
SHIP681 |
* 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.