– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 4 pm Tue 10 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Tue 10 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Tue 10 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 17mm) on Wed night. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 4°C on Wed night, min -3°C on Tue afternoon). Winds decreasing (gales from the WSW on Wed night, light winds from the WSW by Thu night). | Days 5–7 Weather SummaryA light fall of snow, heaviest on Sun afternoon. Turning milder with light rain (total 6mm) on Sun night. Freeze-thaw conditions (max 5°C on Mon morning, min -6°C on Sat night). Wind will be generally light. | ||||||||||||||||
Tue 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | | |  | | | | |  |  |  | |  | |
light snow | mod. snow | mod. snow | light snow | light snow | mod. snow | mod. snow | heavy snow | mod. snow | light snow | light snow | light snow | snow shwrs | some clouds | cloudy | mod. snow | mod. rain | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
1 | 7 | 6 | 3 | 5 | 10 | 9 | 23 | 8 | 2 | 5 | 3 | 1 | — | — | 7 | — | |
— | — | — | 5 | 12 | — | — | — | — | — | — | — | — | — | — | — | 6 | |
max °C | -3 | -1 | -1 | 3 | 4 | -2 | -2 | -2 | -2 | -2 | -3 | -4 | -3 | -1 | -1 | 1 | 4 |
min °C | -3 | -2 | -1 | 1 | -1 | -2 | -2 | -3 | -3 | -3 | -5 | -5 | -4 | -6 | -1 | 0 | 2 |
-8 | -9 | -5 | -5 | -8 | -9 | -9 | -6 | -6 | -6 | -12 | -9 | -7 | -9 | -3 | -4 | -2 | |
600 | 700 | 900 | 1600 | 800 | 700 | 750 | 600 | 650 | 600 | 250 | 450 | 550 | 0 | 850 | 1300 | 2300 | |
Cloud base (m) | 700 | 650 | 600 | 600 | 650 | 650 | 600 | 600 | 600 | 600 | 650 | 650 | 650 | 800 | 1900 | 650 | 700 |
 | — | — | 7:28 | — | — | 7:26 | — | — | 7:24 | — | — | 7:22 | — | — | 7:20 | — | — |
 | 7:02 | — | — | 7:05 | — | — | 7:06 | — | — | 7:07 | — | — | 7:08 | — | — | 7:10 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Moderate rain (total 17mm) on Wed night. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 4°C on Wed night, min -3°C on Tue afternoon). Winds decreasing (gales from the WSW on Wed night, light winds from the WSW by Thu night).
Mount Index Weather (Days 3-6):
A light fall of snow, heaviest on Sun afternoon. Turning milder with light rain (total 6mm) on Sun night. Freeze-thaw conditions (max 5°C on Mon morning, min -6°C on Sat night). Wind will be generally light.
This table gives the weather forecast for Mount Index at the specific elevation of 1000 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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