– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 am Sat 06 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sat 06 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sat 06 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryModerate rain (total 18mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Mon afternoon, min -4°C on Mon night). Winds increasing (moderate winds from the WSW on Sat night, stormy winds from the WSW by Mon afternoon). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Thu night. Becoming milder with light rain (total 2mm) on Thu night. Freeze-thaw conditions (max 3°C on Thu night, min -7°C on Tue night). Winds decreasing (gales from the WSW on Tue afternoon, light winds from the SW by Thu afternoon). | |||||||||||||||||
Saturday 6 | Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | |  |  |  | |  |  | |  | | | | |
light snow | light snow | light snow | light snow | light snow | light snow | light snow | heavy rain | heavy snow | cloudy | light snow | mod. snow | some clouds | light snow | some clouds | cloudy | cloudy | mod. snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
3 | 4 | 2 | 4 | 3 | 5 | 3 | — | 11 | — | 2 | 9 | — | 1 | — | — | — | 8 | |
— | — | — | — | — | — | 6 | 12 | — | — | — | — | — | — | — | — | — | 2 | |
max°C | -3 | -3 | -2 | 0 | -1 | -1 | 2 | 3 | -3 | -2 | 2 | 2 | -6 | -6 | -5 | -3 | -2 | 3 |
min°C | -3 | -3 | -3 | -1 | -1 | -2 | 0 | 3 | -4 | -3 | -2 | -7 | -6 | -6 | -6 | -4 | -3 | -2 |
-12 | -12 | -10 | -7 | -9 | -9 | -7 | -5 | -11 | -9 | -10 | -16 | -14 | -13 | -12 | -9 | -6 | -6 | |
1300 | 1400 | 1350 | 1550 | 1700 | 1600 | 1850 | 2450 | 1150 | 1200 | 1250 | 1650 | 900 | 900 | 600 | 1000 | 1400 | 1350 | |
Cloud base (m) | 600 | 600 | 600 | 600 | 600 | 650 | 650 | 550 | 650 | 600 | 800 | 600 | 650 | 700 | 650 | 650 | 2750 | 650 |
 | 7:39 | — | — | 7:41 | — | — | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — | 7:45 | — | — |
 | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:13 | — | — | 4:13 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Moderate rain (total 18mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Mon afternoon, min -4°C on Mon night). Winds increasing (moderate winds from the WSW on Sat night, stormy winds from the WSW by Mon afternoon).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Thu night. Becoming milder with light rain (total 2mm) on Thu night. Freeze-thaw conditions (max 3°C on Thu night, min -7°C on Tue night). Winds decreasing (gales from the WSW on Tue afternoon, light winds from the SW by Thu 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 |
|---|---|---|---|---|---|
SHIP9108 | |||||
 | |||||
 | |||||
SHIP8103 | |||||
SHIP612 | |||||
SHIP4278 | |||||
SHIP5766 | |||||
SHIP3555 |
* 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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