– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 10 am Wed 11 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Wed 11 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Wed 11 Mar 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 Thu morning. Temperatures will be below freezing (max 0°C on Wed afternoon, min -10°C on Fri night). Winds decreasing (stormy winds from the WSW on Wed night, light winds from the W by Fri night). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Sat morning. Becoming milder with light rain (total 4mm) on Mon afternoon. Freeze-thaw conditions (max 6°C on Mon night, min -11°C on Sat morning). Winds increasing (calm on Sun morning, strong winds from the WSW by Sun night). | |||||||||||||||||
Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | | | |  | | |  |  |  | | | |  |  | |
mod. snow | mod. snow | heavy snow | heavy snow | heavy snow | heavy snow | heavy snow | light snow | heavy snow | mod. snow | snow shwrs | snow shwrs | cloudy | light snow | heavy snow | light snow | light rain | rain shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
9 | 7 | 17 | 17 | 16 | 30 | 13 | 4 | 13 | 10 | 3 | 1 | — | 5 | 11 | 2 | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 0.1 | |
max °C | -5 | 0 | 0 | -8 | -8 | -6 | -6 | -5 | -6 | -11 | -10 | -7 | -4 | -4 | 1 | 2 | 3 | 6 |
min °C | -6 | -2 | -7 | -8 | -8 | -8 | -6 | -6 | -10 | -11 | -11 | -10 | -6 | -5 | -2 | 1 | 3 | 4 |
-14 | -12 | -17 | -18 | -18 | -17 | -13 | -13 | -19 | -21 | -20 | -17 | -6 | -11 | -9 | -5 | -3 | -1 | |
900 | 1750 | 950 | 650 | 650 | 550 | 700 | 800 | 500 | 400 | 550 | 0 | 850 | 900 | 2050 | 3100 | 3200 | 3350 | |
Cloud base (m) | 600 | 600 | 650 | 650 | 650 | 600 | 600 | 600 | 600 | 650 | 700 | 650 | 2450 | 900 | 650 | 650 | 650 | 650 |
 | 7:28 | — | — | 7:26 | — | — | 7:24 | — | — | 7:22 | — | — | 7:20 | — | — | 7:18 | — | — |
 | — | 7:05 | — | — | 7:06 | — | — | 7:07 | — | — | 7:08 | — | — | 7:10 | — | — | 7:12 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A heavy fall of snow, heaviest during Thu morning. Temperatures will be below freezing (max 0°C on Wed afternoon, min -10°C on Fri night). Winds decreasing (stormy winds from the WSW on Wed night, light winds from the W by Fri night).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Sat morning. Becoming milder with light rain (total 4mm) on Mon afternoon. Freeze-thaw conditions (max 6°C on Mon night, min -11°C on Sat morning). Winds increasing (calm on Sun morning, strong winds from the WSW by Sun 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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