– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 pm Thu 30 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Thu 30 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Thu 30 Jul Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 9mm), mostly falling on Sat afternoon. Very mild (max 13°C on Fri afternoon, min 1°C on Sat night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 15°C on Wed afternoon, min 3°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | | |  |  |  |  | | |  | |  | | | | | | | | |
clear | clear | clear | clear | rain shwrs | mod. rain | some clouds | clear | rain shwrs | rain shwrs | clear | some clouds | clear | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 9600 | 750 | 600 | 2050 | 700 | 950 | 2500 | ||||||||||||
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | 0.2 | 7 | — | — | 1.4 | 0.3 | — | — | — | — | — | — | — | — | — |
max °C | 10 | 11 | 13 | 13 | 6 | 5 | 3 | 1 | 3 | 4 | 5 | 9 | 10 | 10 | 12 | 13 | 13 | 15 | 16 |
min °C | 9 | 10 | 13 | 8 | 5 | 3 | 1 | 1 | 2 | 3 | 4 | 7 | 9 | 10 | 11 | 13 | 13 | 14 | 15 |
chill °C | 8 | 10 | 12 | 5 | 0 | -2 | -3 | -3 | 0 | 0 | 1 | 6 | 8 | 10 | 11 | 13 | 13 | 14 | 15 |
Freezing level m | 4100 | 4300 | 4350 | 4050 | 3050 | 2650 | 2500 | 2350 | 2550 | 2850 | 3000 | 3200 | 3400 | 3550 | 3900 | 4050 | 4100 | 4300 | 4350 |
 | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — |
 | — | — | — | 8:46 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 9mm), mostly falling on Sat afternoon. Very mild (max 13°C on Fri afternoon, min 1°C on Sat night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Mostly dry. Very mild (max 15°C on Wed afternoon, min 3°C on Sun night). 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 |
|---|---|---|---|---|---|
SHIP6194 | |||||
 | |||||
SHIP3162 | |||||
SHIP2747 | |||||
SHIP7139 | |||||
SHIP4807 | |||||
SHIP6706 |
* 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.