– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 am Wed 03 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Wed 03 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Wed 03 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. Temperatures will be below freezing (max 0°C on Thu night, min -3°C on Wed morning). Winds increasing (light winds from the WNW on Wed morning, strong winds from the WSW by Fri morning). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Sat morning. Becoming milder with heavy rain (total 20mm) on Mon afternoon. Freeze-thaw conditions (max 2°C on Mon afternoon, min -4°C on Mon night). Winds increasing (moderate winds from the WSW on Sun night, severe gales from the WSW by Mon night). | |||||||||||||||||
Wednesday 3 | Thursday 4 | Friday 5 | Saturday 6 | Sunday 7 | Monday 8 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | |  | | | | | |  |  | | | |
cloudy | light snow | light snow | mod. snow | mod. snow | mod. snow | mod. snow | mod. snow | heavy snow | mod. snow | mod. snow | mod. snow | light snow | light snow | snow shwrs | some clouds | light snow | heavy snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | 1 | 1 | 6 | 6 | 10 | 7 | 6 | 21 | 9 | 7 | 8 | 5 | 4 | 1 | — | 3 | 11 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 11 | 9 | |
max°C | -3 | -2 | -1 | -2 | -1 | 0 | 0 | 0 | -1 | -3 | -2 | -2 | -1 | 0 | -1 | -1 | 2 | 2 |
min°C | -3 | -3 | -2 | -2 | -1 | -1 | 0 | -1 | -3 | -3 | -2 | -2 | -1 | -1 | -2 | -1 | 2 | -4 |
-8 | -9 | -8 | -8 | -7 | -7 | -7 | -8 | -10 | -10 | -10 | -9 | -8 | -10 | -11 | -8 | -6 | -14 | |
1200 | 1150 | 1350 | 1350 | 1400 | 1650 | 1900 | 1850 | 1550 | 1350 | 1400 | 1500 | 1600 | 1850 | 1500 | 1500 | 2200 | 2000 | |
Cloud base (m) | 900 | 750 | 650 | 650 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 750 | 750 | 900 | 600 |
 | 7:35 | — | — | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:41 | — | — |
 | — | 4:15 | — | — | 4:15 | — | — | 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. Temperatures will be below freezing (max 0°C on Thu night, min -3°C on Wed morning). Winds increasing (light winds from the WNW on Wed morning, strong winds from the WSW by Fri morning).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Sat morning. Becoming milder with heavy rain (total 20mm) on Mon afternoon. Freeze-thaw conditions (max 2°C on Mon afternoon, min -4°C on Mon night). Winds increasing (moderate winds from the WSW on Sun night, severe gales from the WSW by Mon night).
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 |
|---|---|---|---|---|---|
SHIP463 | |||||
 | |||||
 | |||||
SHIP1221 | |||||
SHIP9447 | |||||
SHIP8401 | |||||
SHIP4862 | |||||
SHIP3725 |
* 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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