– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 10 pm Mon 11 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Mon 11 May Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Mon 11 May Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 6mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 15°C on Tue afternoon, min -2°C on Wed night). Winds increasing (calm on Mon night, strong winds from the WSW by Wed afternoon). | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max 0°C on Sun afternoon, min -5°C on Fri night). Winds decreasing (fresh winds from the WSW on Thu night, light winds from the NNW by Sun morning). | ||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | |  |  |  |  | | | |  | |  | | |  | |
clear | some clouds | some clouds | rain shwrs | mod. snow | mod. snow | light snow | cloudy | light snow | heavy snow | light snow | light snow | heavy snow | snow shwrs | light snow | snow shwrs | some clouds | cloudy | cloudy | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | 8 | 8 | 5 | — | 2 | 11 | 2 | 5 | 13 | 1 | 2 | 2 | — | — | — | |
— | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 12 | 12 | 15 | 10 | -1 | 1 | 0 | -1 | -1 | -2 | -4 | -3 | -4 | -4 | -2 | -2 | -2 | 0 | 0 |
min °C | 10 | 12 | 12 | 2 | -1 | 0 | -2 | -1 | -1 | -4 | -4 | -3 | -5 | -5 | -3 | -3 | -3 | -1 | -1 |
10 | 11 | 11 | -2 | -6 | -7 | -9 | -7 | -6 | -11 | -10 | -10 | -12 | -10 | -7 | -8 | -7 | -5 | -7 | |
3650 | 3800 | 3550 | 3100 | 1550 | 1950 | 1600 | 1500 | 1650 | 1300 | 1250 | 1300 | 1100 | 1250 | 1550 | 1200 | 1400 | 1850 | 1600 | |
Cloud base (m) | 9100 | 6050 | 6200 | 750 | 600 | 600 | 650 | 750 | 650 | 750 | 650 | 650 | 650 | 650 | 850 | 700 | 800 | 1650 | 850 |
 | — | 5:31 | — | — | 5:31 | — | — | 5:30 | — | — | 5:28 | — | — | 5:26 | — | — | 5:26 | — | — |
 | — | — | — | 8:32 | — | — | 8:34 | — | — | 8:36 | — | — | 8:37 | — | — | 8:37 | — | — | 8:38 |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Light rain (total 6mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 15°C on Tue afternoon, min -2°C on Wed night). Winds increasing (calm on Mon night, strong winds from the WSW by Wed afternoon).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max 0°C on Sun afternoon, min -5°C on Fri night). Winds decreasing (fresh winds from the WSW on Thu night, light winds from the NNW by Sun 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 |
|---|---|---|---|---|---|
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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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