– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 am Sun 14 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Sun 14 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Sun 14 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryHeavy rain (total 46mm) on Sun night. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 5°C on Sun night, min -8°C on Tue night). Winds increasing (moderate winds from the SW on Sun afternoon, stormy winds from the SW by Mon afternoon). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Wed morning. Temperatures will be below freezing (max -2°C on Thu morning, min -9°C on Fri night). Mainly gales. | |||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | |  |  | | | | | | | | | |
light snow | light rain | heavy rain | heavy rain | light snow | mod. snow | mod. snow | light snow | heavy snow | heavy snow | mod. snow | mod. snow | light snow | light snow | mod. snow | mod. snow | mod. snow | heavy snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
1 | — | — | — | 5 | 6 | 6 | 3 | 38 | 11 | 7 | 6 | 4 | 5 | 9 | 6 | 10 | 13 | |
— | 0.1 | 26 | 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 2 | 3 | 5 | 5 | 0 | -4 | 0 | 0 | 0 | -7 | -6 | -4 | -2 | -3 | -7 | -8 | -8 | -8 |
min°C | 1 | 2 | 3 | 3 | -3 | -5 | -1 | 0 | -8 | -7 | -7 | -5 | -2 | -5 | -8 | -8 | -8 | -9 |
-6 | -4 | -3 | -5 | -13 | -15 | -10 | -8 | -20 | -17 | -17 | -13 | -10 | -14 | -17 | -16 | -16 | -17 | |
2050 | 2150 | 2700 | 2700 | 1900 | 1050 | 1600 | 1800 | 1750 | 750 | 850 | 950 | 1000 | 1300 | 700 | 650 | 700 | 550 | |
Cloud base (m) | 1650 | 700 | 600 | 600 | 600 | 650 | 600 | 550 | 500 | 650 | 650 | 600 | 550 | 550 | 550 | 600 | 600 | 600 |
 | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — |
 | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:15 | — | — | 4:15 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Heavy rain (total 46mm) on Sun night. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 5°C on Sun night, min -8°C on Tue night). Winds increasing (moderate winds from the SW on Sun afternoon, stormy winds from the SW by Mon afternoon).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Wed morning. Temperatures will be below freezing (max -2°C on Thu morning, min -9°C on Fri night). Mainly gales.
This table gives the weather forecast for Mount Index at the specific elevation of 1832 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Index. 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 |
|---|---|---|---|---|---|
 | |||||
 | |||||
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BUOY-46120 | |||||
Seattl / oeing Airport |  | ||||
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* 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.
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