– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 pm Wed 10 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Wed 10 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Wed 10 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 18mm) on Wed night. Becoming colder with heavy fall of snow, heaviest during Wed night. Freeze-thaw conditions (max 7°C on Sat morning, min -1°C on Wed night). Winds decreasing (severe gales from the WSW on Wed night, light winds from the WSW by Fri night). | Days 5–7 Weather SummaryHeavy rain (total 39mm) on Mon morning. Becoming colder with heavy fall of snow, heaviest during Tue afternoon. Freeze-thaw conditions (max 5°C on Sat night, min -5°C on Mon night). Mainly severe gales. | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | |  |  |  |  | | |  |  | |  | |  | | |
heavy snow | light snow | light snow | light snow | light rain | light rain | rain shwrs | clear | some clouds | light rain | some clouds | light rain | heavy rain | heavy rain | heavy rain | mod. snow | light snow | heavy snow | heavy snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
20 | 4 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 6 | 4 | 21 | 16 | |
11 | — | — | 4 | 2 | 0.9 | 0.6 | — | — | 1.7 | — | 0.8 | 14 | 13 | 10 | — | — | — | — | |
max°C | 4 | 0 | 1 | 3 | 3 | 3 | 4 | 7 | 7 | 5 | 3 | 2 | 3 | 4 | 4 | -2 | -2 | -1 | -6 |
min°C | -1 | -1 | 1 | 2 | 3 | 3 | 3 | 6 | 6 | 3 | 2 | 2 | 2 | 4 | 3 | -5 | -3 | -4 | -8 |
-8 | -7 | -5 | -4 | -3 | -3 | -2 | 2 | 2 | -3 | -4 | -3 | -5 | -3 | -5 | -14 | -11 | -15 | -20 | |
2250 | 1600 | 2050 | 2400 | 2650 | 3000 | 3350 | 3250 | 2950 | 2550 | 2350 | 2300 | 2550 | 2850 | 2450 | 1200 | 1200 | 1600 | 700 | |
Cloud base (m) | 600 | 650 | 650 | 650 | 650 | 650 | 600 | 800 | 8450 | 1650 | 1700 | 600 | 600 | 600 | 600 | 650 | 500 | 600 | |
 | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — |
 | — | — | 4:13 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Moderate rain (total 18mm) on Wed night. Becoming colder with heavy fall of snow, heaviest during Wed night. Freeze-thaw conditions (max 7°C on Sat morning, min -1°C on Wed night). Winds decreasing (severe gales from the WSW on Wed night, light winds from the WSW by Fri night).
Mount Index Weather (Days 3-6):
Heavy rain (total 39mm) on Mon morning. Becoming colder with heavy fall of snow, heaviest during Tue afternoon. Freeze-thaw conditions (max 5°C on Sat night, min -5°C on Mon night). Mainly severe 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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