– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 pm Sun 21 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Sun 21 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Sun 21 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA heavy fall of snow, heaviest during Mon night. Temperatures will be below freezing (max -2°C on Tue night, min -8°C on Sun night). Winds decreasing (fresh winds from the SSW on Mon afternoon, light winds from the SSE by Tue afternoon). | Days 5–7 Weather SummaryA light covering of new snow mostly falling on Thu night. Temperatures will be below freezing (max -1°C on Wed night, min -6°C on Wed afternoon). Wind will be generally light. | ||||||||||||||||
Sun 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | |  | |  |  | | | |  |  |  | |
mod. snow | snow shwrs | cloudy | light snow | heavy snow | cloudy | cloudy | light snow | mod. snow | snow shwrs | some clouds | light snow | light snow | light snow | some clouds | clear | clear | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
9 | 10 | — | 2 | 13 | — | — | 1 | 8 | 1 | — | 1 | 1 | 5 | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -4 | -6 | -6 | -5 | -6 | -4 | -4 | -2 | -4 | -5 | -1 | -2 | -4 | -4 | -4 | -3 | -4 |
min °C | -5 | -8 | -7 | -6 | -7 | -5 | -4 | -3 | -6 | -6 | -3 | -4 | -4 | -5 | -4 | -4 | -4 |
-12 | -17 | -15 | -15 | -16 | -11 | -10 | -8 | -14 | -13 | -6 | -11 | -11 | -12 | -7 | -7 | -8 | |
1050 | 800 | 750 | 1000 | 750 | 900 | 1150 | 1200 | 850 | 750 | 0 | 1500 | 1150 | 1150 | 1200 | 1250 | 0 | |
Cloud base (m) | 650 | 600 | 700 | 1600 | 600 | 600 | 700 | 2250 | 550 | 600 | 600 | 1850 | 650 | 600 | 700 | 650 | 750 |
 | — | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:54 | — | — | 7:54 | — | — |
 | 4:15 | — | — | 4:16 | — | — | 4:16 | — | — | 4:17 | — | — | 4:17 | — | — | 4:19 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A heavy fall of snow, heaviest during Mon night. Temperatures will be below freezing (max -2°C on Tue night, min -8°C on Sun night). Winds decreasing (fresh winds from the SSW on Mon afternoon, light winds from the SSE by Tue afternoon).
Mount Index Weather (Days 3-6):
A light covering of new snow mostly falling on Thu night. Temperatures will be below freezing (max -1°C on Wed night, min -6°C on Wed afternoon). Wind will be generally light.
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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