– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 4 am Sun 15 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Sun 15 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Sun 15 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryA moderate fall of snow heaviest on Sun night. Turning milder with heavy rain (total 53mm), heaviest during Tue night. Freeze-thaw conditions (max 4°C on Tue night, min -5°C on Sun morning). Winds increasing (calm on Sun morning, near gales from the SW by Tue night). | Days 4–6 Weather SummaryMild with heavy rain (total 82mm), heaviest during Wed afternoon. Becoming colder with a moderate fall of snow heaviest on Fri afternoon. Freeze-thaw conditions (max 4°C on Thu night, min -8°C on Fri night). Winds decreasing (near gales from the SW on Fri morning, moderate winds from the WSW by Fri night). | |||||||||||||||||
Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | |  | | |  | |  | | |  | | |
some clouds | light snow | mod. snow | heavy rain | light rain | rain shwrs | light snow | light rain | heavy rain | heavy rain | heavy rain | mod. rain | heavy rain | mod. rain | heavy rain | heavy rain | mod. snow | mod. snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | 1 | 10 | — | — | — | 3 | — | — | — | — | — | — | — | — | — | 7 | 7 | |
— | — | — | 11 | 4 | 1 | — | 4 | 34 | 17 | 12 | 9 | 12 | 7 | 14 | 11 | — | — | |
max °C | -4 | -3 | 2 | 2 | 3 | 3 | 2 | 3 | 4 | 3 | 3 | 3 | 3 | 2 | 4 | 3 | 2 | -1 |
min °C | -5 | -4 | -2 | 2 | 3 | 2 | 1 | 3 | 3 | 3 | 2 | 2 | 3 | 2 | 3 | 2 | 1 | -8 |
-7 | -8 | -8 | -4 | -3 | -5 | -5 | -2 | -2 | -3 | -4 | -4 | -3 | -5 | -3 | -5 | -6 | -17 | |
1100 | 1000 | 1950 | 2750 | 2850 | 2450 | 2400 | 2500 | 2700 | 2500 | 2500 | 3100 | 2600 | 2600 | 3050 | 2400 | 1950 | 900 | |
Cloud base (m) | 2350 | 950 | 650 | 650 | 600 | 750 | 650 | 600 | 600 | 650 | 650 | 600 | 650 | 650 | 600 | 600 | 600 | 650 |
 | 7:20 | — | — | 7:18 | — | — | 7:15 | — | — | 7:13 | — | — | 7:11 | — | — | 7:09 | — | — |
 | — | 7:10 | — | — | 7:12 | — | — | 7:14 | — | — | 7:15 | — | — | 7:16 | — | — | 7:17 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A moderate fall of snow heaviest on Sun night. Turning milder with heavy rain (total 53mm), heaviest during Tue night. Freeze-thaw conditions (max 4°C on Tue night, min -5°C on Sun morning). Winds increasing (calm on Sun morning, near gales from the SW by Tue night).
Mount Index Weather (Days 3-6):
Mild with heavy rain (total 82mm), heaviest during Wed afternoon. Becoming colder with a moderate fall of snow heaviest on Fri afternoon. Freeze-thaw conditions (max 4°C on Thu night, min -8°C on Fri night). Winds decreasing (near gales from the SW on Fri morning, moderate winds from the WSW by Fri 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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