– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 10 pm Sun 24 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Sun 24 May Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sun 24 May Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Mon afternoon. Freeze-thaw conditions (max 10°C on Wed afternoon, min -2°C on Mon night). Winds decreasing (fresh winds from the SSW on Sun night, calm by Wed afternoon). | Days 5–7 Weather SummaryMild at first with light rain (total 5mm) on Fri morning followed by colder weather and light fall of snow, heaviest on Fri afternoon. Freeze-thaw conditions (max 11°C on Thu afternoon, min -2°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  |  | |  | | |  | |  | | | | | |
some clouds | light rain | light snow | light snow | light snow | cloudy | some clouds | clear | some clouds | clear | clear | some clouds | rain shwrs | light rain | mod. snow | light snow | cloudy | some clouds | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | 3 | 2 | 3 | — | — | — | — | — | — | — | — | — | 7 | 4 | — | — | — | |
— | 0.1 | — | — | — | — | — | — | — | — | — | — | 0.1 | 5 | — | — | — | — | — | |
max °C | 8 | 3 | 1 | 0 | -1 | 0 | 3 | 6 | 10 | 9 | 9 | 11 | 11 | 5 | 2 | 2 | -2 | 2 | 1 |
min °C | 5 | 2 | 1 | -2 | -2 | -1 | 1 | 4 | 9 | 8 | 9 | 11 | 7 | 2 | 2 | -2 | -2 | 1 | 1 |
0 | -3 | -4 | -6 | -6 | -1 | -2 | 2 | 9 | 7 | 9 | 11 | 6 | -1 | -1 | -6 | -6 | -2 | -1 | |
2950 | 2200 | 1950 | 1550 | 1500 | 1900 | 3450 | 3750 | 3900 | 3750 | 3700 | 3850 | 3900 | 2800 | 2350 | 1600 | 1400 | 2150 | 2050 | |
Cloud base (m) | 6200 | 2400 | 700 | 850 | 600 | 600 | 700 | 650 | 3850 | 6700 | 4400 | 700 | 600 | 650 | 650 | 1700 | |||
 | — | 5:16 | — | — | 5:16 | — | — | 5:15 | — | — | 5:15 | — | — | 5:13 | — | — | 5:13 | — | — |
 | — | — | — | 8:49 | — | — | 8:50 | — | — | 8:51 | — | — | 8:52 | — | — | 8:52 | — | — | 8:53 |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A light covering of new snow mostly falling on Mon afternoon. Freeze-thaw conditions (max 10°C on Wed afternoon, min -2°C on Mon night). Winds decreasing (fresh winds from the SSW on Sun night, calm by Wed afternoon).
Mount Index Weather (Days 3-6):
Mild at first with light rain (total 5mm) on Fri morning followed by colder weather and light fall of snow, heaviest on Fri afternoon. Freeze-thaw conditions (max 11°C on Thu afternoon, min -2°C on Fri night). Wind will be generally light.
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.
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