– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 am Sun 14 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sun 14 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sun 14 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryMild with heavy rain (total 95mm), heaviest during Tue night. Becoming colder with a moderate fall of snow heaviest on Tue night. Freeze-thaw conditions (max 9°C on Sun night, min -2°C on Tue night). Winds increasing (light winds from the SW on Sun morning, gales from the SSW by Mon afternoon). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 2°C on Thu afternoon, min -2°C on Thu night). Winds increasing (light winds from the SSW on Wed night, fresh winds from the SW by Thu afternoon). | |||||||||||||||||
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 rain | cloudy | heavy rain | heavy rain | mod. rain | light snow | heavy rain | mod. rain | mod. snow | light snow | light snow | light snow | light snow | light snow | mod. snow | light snow | light snow | light snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | 4 | — | — | 8 | 5 | 4 | 3 | 3 | 2 | 8 | 5 | 5 | 5 | |
2 | — | 24 | 17 | 8 | — | 11 | 7 | 26 | — | — | — | — | — | — | — | — | — | |
max°C | 5 | 7 | 9 | 9 | 7 | 1 | 4 | 4 | 5 | -1 | -1 | 0 | 1 | 2 | -1 | -2 | -2 | -2 |
min°C | 5 | 6 | 8 | 9 | 3 | 1 | 3 | 3 | -2 | -1 | -1 | -1 | 0 | 0 | -2 | -2 | -2 | -2 |
2 | 4 | 5 | 5 | -4 | -6 | -3 | -2 | -10 | -8 | -7 | -6 | -5 | -6 | -6 | -7 | -7 | -8 | |
2000 | 2200 | 2650 | 2750 | 2250 | 1100 | 1650 | 1550 | 1800 | 800 | 850 | 900 | 900 | 1250 | 850 | 700 | 700 | 650 | |
Cloud base (m) | 1700 | 800 | 650 | 600 | 600 | 650 | 600 | 650 | 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: Mild with heavy rain (total 95mm), heaviest during Tue night. Becoming colder with a moderate fall of snow heaviest on Tue night. Freeze-thaw conditions (max 9°C on Sun night, min -2°C on Tue night). Winds increasing (light winds from the SW on Sun morning, gales from the SSW by Mon afternoon).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 2°C on Thu afternoon, min -2°C on Thu night). Winds increasing (light winds from the SSW on Wed night, fresh winds from the SW by Thu afternoon).
This table gives the weather forecast for Mount Index at the specific elevation of 1000 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 | | ||||
| |||||
* 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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