– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 pm Thu 20 Nov Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Thu 20 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Thu 20 Nov Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Sun morning. Freeze-thaw conditions (max 2°C on Fri night, min -2°C on Thu afternoon). Winds increasing (light winds from the W on Thu afternoon, fresh winds from the SW by Sun morning). | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Sun afternoon. Temperatures will be below freezing (max -1°C on Wed morning, min -8°C on Mon night). Winds decreasing (strong winds from the WNW on Sun night, calm by Tue morning). | ||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | | | |  |  |  |  | | | | |  | |
some clouds | some clouds | some clouds | cloudy | cloudy | some clouds | cloudy | cloudy | mod. snow | heavy snow | snow shwrs | snow shwrs | snow shwrs | snow shwrs | cloudy | some clouds | light snow | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | 7 | 19 | 8 | 2 | 1 | 2 | — | — | 5 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | -1 | 0 | 1 | 1 | 2 | 2 | 2 | 1 | -2 | -5 | -7 | -7 | -7 | -7 | -6 | -4 | -2 |
min°C | -2 | 0 | 0 | 1 | 2 | 2 | 2 | 0 | -2 | -7 | -7 | -7 | -7 | -8 | -7 | -5 | -5 |
-5 | -3 | -4 | -3 | -2 | -2 | -3 | -6 | -9 | -16 | -17 | -15 | -15 | -15 | -10 | -8 | -10 | |
1450 | 1700 | 2000 | 2000 | 2200 | 2350 | 2250 | 1950 | 1450 | 1100 | 750 | 800 | 750 | 600 | 700 | 950 | 650 | |
Cloud base (m) | 800 | 900 | 3150 | 2250 | 2100 | 750 | 2000 | 750 | 700 | 600 | 650 | 650 | 650 | 650 | 650 | 2700 | 1900 |
 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — | 7:26 | — | — |
 | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:21 | — | — | 4:20 | — | — | 4:19 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A light covering of new snow mostly falling on Sun morning. Freeze-thaw conditions (max 2°C on Fri night, min -2°C on Thu afternoon). Winds increasing (light winds from the W on Thu afternoon, fresh winds from the SW by Sun morning).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Sun afternoon. Temperatures will be below freezing (max -1°C on Wed morning, min -8°C on Mon night). Winds decreasing (strong winds from the WNW on Sun night, calm by Tue 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 | | ||||
SHIP3089 | |||||
SHIP3475 | |||||
SHIP4448 |
* 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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