– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 pm Tue 09 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Tue 09 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Tue 09 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryMild with heavy rain (total 109mm), heaviest during Wed morning. Becoming colder with a moderate fall of snow heaviest on Wed night. Freeze-thaw conditions (max 5°C on Wed afternoon, min -1°C on Thu morning). Winds increasing (light winds from the SW on Tue afternoon, severe gales from the WSW by Wed morning). | Days 5–7 Weather SummaryA dusting of snow. Milder later with heavy rain (total 34mm) on Mon morning. Mild temperatures (max 5°C on Sat afternoon, min 1°C on Sat night). Winds increasing (moderate winds from the WSW on Fri night, near gales from the SW by Mon morning). | ||||||||||||||||
Tue 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | |  |  | |  |  |  | | |  |  | |
light snow | heavy rain | heavy rain | heavy rain | light snow | mod. snow | light snow | light rain | light rain | light rain | some clouds | clear | cloudy | light snow | light snow | some clouds | mod. rain | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
1 | — | — | — | 4 | 6 | 3 | — | — | — | — | — | — | 1 | 3 | — | — | |
— | 32 | 22 | 21 | 28 | — | — | 3 | 1.6 | 1.1 | — | — | — | — | — | — | 6 | |
max°C | 1 | 4 | 4 | 5 | 4 | 0 | 0 | 3 | 3 | 2 | 2 | 4 | 5 | 5 | 1 | 1 | 3 |
min°C | 0 | 2 | 4 | 4 | 0 | -1 | 0 | 2 | 2 | 2 | 2 | 3 | 4 | 1 | 1 | 1 | 2 |
-5 | -5 | -4 | -4 | -6 | -7 | -6 | -4 | -5 | -4 | -4 | -2 | -1 | -6 | -5 | -5 | -4 | |
1750 | 2700 | 2700 | 3050 | 2550 | 1600 | 1900 | 2350 | 2400 | 2500 | 3150 | 2900 | 2700 | 2550 | 2000 | 2000 | 2500 | |
Cloud base (m) | 1550 | 600 | 600 | 600 | 600 | 650 | 650 | 650 | 600 | 600 | 650 | 9050 | 650 | 650 | 900 | ||
 | — | — | 7:43 | — | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — | 7:47 | — | — |
 | 4:14 | — | — | 4:13 | — | — | 4:13 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Mild with heavy rain (total 109mm), heaviest during Wed morning. Becoming colder with a moderate fall of snow heaviest on Wed night. Freeze-thaw conditions (max 5°C on Wed afternoon, min -1°C on Thu morning). Winds increasing (light winds from the SW on Tue afternoon, severe gales from the WSW by Wed morning).
Mount Index Weather (Days 3-6):
A dusting of snow. Milder later with heavy rain (total 34mm) on Mon morning. Mild temperatures (max 5°C on Sat afternoon, min 1°C on Sat night). Winds increasing (moderate winds from the WSW on Fri night, near gales from the SW by Mon morning).
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 |
|---|---|---|---|---|---|
 | |||||
 | |||||
 | |||||
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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