– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 4 am Fri 15 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Fri 15 May Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Fri 15 May 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 Sat morning. Temperatures will be below freezing (max 0°C on Sun afternoon, min -5°C on Sat morning). Winds decreasing (fresh winds from the NW on Sat night, calm by Sun afternoon). | Days 4–6 Weather SummaryA dusting of snow turning to light rain (total 6mm) on Wed night. Freeze-thaw conditions (max 4°C on Wed afternoon, min -1°C on Mon morning). Winds increasing (light winds from the WNW on Mon morning, fresh winds from the WSW by Wed night). | |||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  | |  | |  |  | |  | |  | |  | |
light snow | mod. snow | heavy snow | heavy snow | snow shwrs | some clouds | some clouds | some clouds | cloudy | some clouds | rain shwrs | light snow | some clouds | cloudy | some clouds | clear | cloudy | mod. rain | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
3 | 10 | 18 | 11 | 2 | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | 0.1 | — | — | — | — | — | — | 6 | |
max °C | -4 | -4 | -4 | -5 | -3 | -3 | -3 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 2 | 2 | 4 | 4 |
min °C | -4 | -4 | -4 | -5 | -4 | -4 | -3 | -2 | 0 | -1 | 1 | -1 | 0 | 1 | 1 | 1 | 3 | 3 |
-11 | -11 | -11 | -11 | -10 | -11 | -7 | -2 | -2 | -4 | -2 | -6 | -4 | -2 | -4 | -4 | -1 | -1 | |
1200 | 1200 | 1150 | 1100 | 1350 | 1150 | 1300 | 1700 | 1850 | 1750 | 2100 | 1750 | 1850 | 2200 | 2300 | 2250 | 2650 | 2600 | |
Cloud base (m) | 650 | 600 | 600 | 650 | 650 | 650 | 650 | 800 | 1600 | 800 | 1650 | 650 | 750 | 1000 | 850 | 700 | 1800 | 600 |
 | 5:28 | — | — | 5:26 | — | — | 5:26 | — | — | 5:24 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | — | 8:37 | — | — | 8:37 | — | — | 8:38 | — | — | 8:40 | — | — | 8:42 | — | — | 8:43 |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A heavy fall of snow, heaviest during Sat morning. Temperatures will be below freezing (max 0°C on Sun afternoon, min -5°C on Sat morning). Winds decreasing (fresh winds from the NW on Sat night, calm by Sun afternoon).
Mount Index Weather (Days 3-6):
A dusting of snow turning to light rain (total 6mm) on Wed night. Freeze-thaw conditions (max 4°C on Wed afternoon, min -1°C on Mon morning). Winds increasing (light winds from the WNW on Mon morning, fresh winds from the WSW by Wed 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 |
|---|---|---|---|---|---|
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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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