– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 10 pm Sun 08 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Sun 08 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sun 08 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA heavy fall of snow, heaviest during Mon night. Becoming milder with light rain (total 8mm) on Wed afternoon. Freeze-thaw conditions (max 2°C on Wed afternoon, min -6°C on Mon night). Winds increasing (light winds from the WNW on Sun night, strong winds from the SW by Wed afternoon). | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Thu afternoon. Becoming milder with heavy rain (total 48mm) on Thu night. Freeze-thaw conditions (max 4°C on Wed night, min -4°C on Sat morning). Winds decreasing (gales from the WSW on Wed night, light winds from the SW by Thu night). | ||||||||||||||||||
Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | | | | |  | |  | |  | |  | |  |  | |
heavy snow | mod. snow | light snow | heavy snow | light snow | light snow | heavy snow | mod. snow | light snow | light snow | mod. snow | heavy snow | heavy snow | heavy rain | mod. snow | mod. snow | light snow | cloudy | cloudy | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
12 | 9 | 5 | 20 | 3 | 2 | 11 | 9 | 4 | 1 | 9 | 11 | 13 | — | 9 | 6 | 2 | — | — | |
— | — | — | — | — | — | — | — | 8 | 13 | — | — | 12 | 23 | — | — | — | — | — | |
max °C | -3 | -4 | -3 | -4 | -5 | -2 | -1 | 0 | 2 | 4 | -1 | -1 | 3 | 3 | 1 | -1 | -4 | -2 | -2 |
min °C | -4 | -4 | -3 | -6 | -5 | -3 | -2 | -1 | 1 | -1 | -1 | -1 | -1 | 3 | 0 | -3 | -4 | -3 | -4 |
-9 | -9 | -9 | -10 | -10 | -7 | -7 | -5 | -5 | -9 | -7 | -7 | -4 | -3 | -3 | -8 | -10 | -7 | -6 | |
550 | 450 | 600 | 250 | 450 | 650 | 750 | 1050 | 1500 | 1000 | 800 | 800 | 1350 | 1650 | 1100 | 700 | 500 | 700 | 0 | |
Cloud base (m) | 600 | 600 | 600 | 600 | 650 | 700 | 650 | 600 | 600 | 650 | 650 | 650 | 600 | 600 | 600 | 600 | 650 | 650 | 650 |
 | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:26 | — | — | 7:24 | — | — | 7:22 | — | — |
 | — | — | 7:01 | — | — | 7:02 | — | — | 7:05 | — | — | 7:06 | — | — | 7:07 | — | — | 7:08 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A heavy fall of snow, heaviest during Mon night. Becoming milder with light rain (total 8mm) on Wed afternoon. Freeze-thaw conditions (max 2°C on Wed afternoon, min -6°C on Mon night). Winds increasing (light winds from the WNW on Sun night, strong winds from the SW by Wed afternoon).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Thu afternoon. Becoming milder with heavy rain (total 48mm) on Thu night. Freeze-thaw conditions (max 4°C on Wed night, min -4°C on Sat morning). Winds decreasing (gales from the WSW on Wed night, light winds from the SW by Thu night).
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.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
| |||||
 | |||||
BUOY-46120 | |||||
Seattl / oeing Airport | | ||||
SHIP3117 | |||||
SHIP4978 | |||||
SHIP483 |
* 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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