– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 pm Sun 07 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Sun 07 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Sun 07 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 37mm) on Mon morning. Becoming colder with heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Mon morning, min -4°C on Mon night). Winds decreasing (severe gales from the WSW on Mon night, light winds from the W by Tue morning). | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Thu morning. Becoming milder with light rain (total 3mm) on Fri morning. Freeze-thaw conditions (max 2°C on Fri morning, min 0°C on Wed night). Winds increasing (moderate winds from the W on Thu morning, strong winds from the WSW by Sat afternoon). | ||||||||||||||||||
Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | |  |  |  | | |  | | | | | |  | |
light snow | light snow | mod. rain | heavy snow | some clouds | cloudy | light snow | heavy snow | mod. snow | mod. snow | mod. snow | light snow | cloudy | light snow | light snow | cloudy | cloudy | light snow | snow shwrs | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
4 | 4 | — | 11 | — | — | 4 | 15 | 7 | 7 | 8 | 3 | — | 1 | 2 | — | — | 3 | 5 | |
— | 7 | 10 | 6 | — | — | 15 | — | — | — | — | — | — | 3 | — | — | — | — | — | |
max°C | -1 | 3 | 3 | 3 | -1 | -1 | 3 | -1 | 0 | 1 | 0 | 0 | 1 | 2 | 2 | 2 | 1 | 1 | 0 |
min°C | -2 | 0 | 3 | -4 | -2 | -1 | 2 | -1 | -1 | 0 | 0 | 0 | 0 | 2 | 2 | 1 | 1 | 1 | -4 |
-10 | -8 | -5 | -13 | -8 | -6 | -5 | -7 | -8 | -7 | -6 | -6 | -6 | -4 | -4 | -5 | -6 | -6 | -13 | |
1550 | 1850 | 2300 | 1650 | 1350 | 1750 | 2500 | 1700 | 1550 | 2000 | 1900 | 1750 | 1700 | 2150 | 2150 | 2150 | 2050 | 2200 | 1450 | |
Cloud base (m) | 650 | 650 | 600 | 600 | 800 | 2400 | 600 | 600 | 600 | 600 | 650 | 650 | 650 | 600 | 600 | 600 | 600 | 650 | 650 |
 | — | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — |
 | — | — | 4:14 | — | — | 4:14 | — | — | 4:13 | — | — | 4:13 | — | — | 4:14 | — | — | 4:14 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Heavy rain (total 37mm) on Mon morning. Becoming colder with heavy fall of snow, heaviest during Mon night. Freeze-thaw conditions (max 3°C on Mon morning, min -4°C on Mon night). Winds decreasing (severe gales from the WSW on Mon night, light winds from the W by Tue morning).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Thu morning. Becoming milder with light rain (total 3mm) on Fri morning. Freeze-thaw conditions (max 2°C on Fri morning, min 0°C on Wed night). Winds increasing (moderate winds from the W on Thu morning, strong winds from the WSW by Sat 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 |
|---|---|---|---|---|---|
SHIP9886 | |||||
 | |||||
| |||||
SHIP6862 | |||||
SHIP9809 | |||||
SHIP3668 | |||||
SHIP5682 | |||||
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* 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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