– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 pm Wed 07 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Wed 07 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Wed 07 Jan 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 Wed night. Freeze-thaw conditions (max 2°C on Fri night, min -9°C on Wed night). Winds decreasing (strong winds from the WNW on Wed night, light winds from the W by Fri afternoon). | Days 5–7 Weather SummaryA moderate fall of snow, heaviest on Sun afternoon. Turning milder with moderate rain (total 10mm), heaviest on Sun night. Freeze-thaw conditions (max 8°C on Tue afternoon, min -1°C on Sat night). Winds decreasing (strong winds from the SW on Sun afternoon, light winds from the W by Tue afternoon). | ||||||||||||||||||
Thursday 8 | Friday 9 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  |  |  | |  | | |  |  | |  |  |  |  | |
heavy snow | mod. snow | mod. snow | cloudy | light snow | cloudy | some clouds | some clouds | cloudy | light snow | light snow | light snow | mod. snow | light rain | light rain | rain shwrs | rain shwrs | clear | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
17 | 9 | 6 | — | 1 | — | — | — | — | 1 | 4 | 5 | 8 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | 0.5 | 0.1 | 0.1 | — | — | |
max °C | -8 | -7 | -6 | -5 | -4 | 1 | 2 | 2 | 2 | 1 | 1 | 2 | 3 | 4 | 4 | 6 | 7 | 8 | 9 |
min °C | -9 | -8 | -6 | -6 | -4 | -2 | 2 | 2 | 1 | -1 | 1 | -1 | 1 | 3 | 4 | 4 | 7 | 7 | 8 |
-20 | -17 | -14 | -13 | -10 | -7 | -3 | -3 | -5 | -7 | -5 | -8 | -6 | -3 | -1 | 0 | 5 | 5 | 6 | |
650 | 600 | 800 | 850 | 1000 | 1400 | 2250 | 2200 | 2050 | 1900 | 2100 | 2250 | 2150 | 2500 | 2950 | 3150 | 3100 | 3300 | 3450 | |
Cloud base (m) | 600 | 650 | 650 | 750 | 650 | 650 | 650 | 4450 | 700 | 2400 | 700 | 700 | 650 | 650 | 650 | 750 | 650 | 650 | |
 | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — |
 | — | — | 4:31 | — | — | 4:32 | — | — | 4:35 | — | — | 4:36 | — | — | 4:37 | — | — | 4:38 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A heavy fall of snow, heaviest during Wed night. Freeze-thaw conditions (max 2°C on Fri night, min -9°C on Wed night). Winds decreasing (strong winds from the WNW on Wed night, light winds from the W by Fri afternoon).
Mount Index Weather (Days 3-6):
A moderate fall of snow, heaviest on Sun afternoon. Turning milder with moderate rain (total 10mm), heaviest on Sun night. Freeze-thaw conditions (max 8°C on Tue afternoon, min -1°C on Sat night). Winds decreasing (strong winds from the SW on Sun afternoon, light winds from the W 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 |
|---|---|---|---|---|---|
 | |||||
| |||||
 | |||||
Seattl / oeing Airport | | ||||
SHIP4558 | |||||
SHIP3984 | |||||
SHIP2507 | |||||
SHIP9009 |
* 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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