– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 am Thu 04 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Thu 04 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Thu 04 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryA heavy fall of snow, heaviest during Fri night. Freeze-thaw conditions (max 1°C on Thu night, min -3°C on Fri night). Winds increasing (light winds from the W on Thu night, gales from the WSW by Fri night). | Days 4–6 Weather SummaryLight rain (total 8mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Mon afternoon, min -6°C on Mon night). Winds decreasing (stormy winds from the WSW on Mon afternoon, light winds from the SW by Tue afternoon). | |||||||||||||||||
Thursday 4 | Friday 5 | Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  | | | | | |  | | | | | | | |
mod. snow | mod. snow | mod. snow | light snow | light snow | heavy snow | light snow | light snow | mod. snow | light snow | mod. snow | light snow | light snow | light snow | heavy snow | light snow | light snow | mod. snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
7 | 6 | 7 | 5 | 5 | 13 | 3 | 4 | 8 | 5 | 6 | 3 | 4 | 2 | 21 | 5 | 2 | 7 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | 8 | — | — | — | — | |
max°C | -2 | -1 | 1 | 1 | 0 | -3 | -3 | -3 | -2 | 0 | 0 | -1 | 1 | 3 | -1 | -5 | -4 | 2 |
min°C | -2 | -2 | -1 | 1 | -2 | -3 | -3 | -3 | -3 | -1 | -1 | -2 | -1 | 2 | -6 | -6 | -4 | -3 |
-8 | -8 | -6 | -6 | -11 | -13 | -11 | -11 | -10 | -7 | -7 | -10 | -8 | -6 | -16 | -14 | -10 | -9 | |
1350 | 1400 | 1700 | 2150 | 1900 | 1350 | 1350 | 1400 | 1500 | 1550 | 1800 | 1650 | 1600 | 2200 | 1250 | 1000 | 1150 | 1350 | |
Cloud base (m) | 650 | 650 | 600 | 600 | 550 | 600 | 650 | 600 | 600 | 600 | 600 | 650 | 750 | 600 | 600 | 650 | 650 | 550 |
 | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:41 | — | — | 7:43 | — | — |
 | — | 4:15 | — | — | 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: A heavy fall of snow, heaviest during Fri night. Freeze-thaw conditions (max 1°C on Thu night, min -3°C on Fri night). Winds increasing (light winds from the W on Thu night, gales from the WSW by Fri night).
Mount Index Weather (Days 3-6):
Light rain (total 8mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Mon afternoon, min -6°C on Mon night). Winds decreasing (stormy winds from the WSW on Mon afternoon, light winds from the SW by Tue afternoon).
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 |
|---|---|---|---|---|---|
SHIP7360 | |||||
 | |||||
| |||||
SHIP3481 | |||||
SHIP8740 | |||||
SHIP5309 | |||||
SHIP8605 | |||||
SHIP7814 |
* 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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