– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 4 pm Sun 29 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sun 29 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sun 29 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA moderate fall of snow, heaviest on Sun afternoon. Temperatures will be below freezing (max -3°C on Mon night, min -10°C on Sun night). Winds decreasing (fresh winds from the WSW on Sun afternoon, calm by Mon night). | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Wed night. Temperatures will be below freezing (max -1°C on Fri night, min -7°C on Wed night). Wind will be generally light. | ||||||||||||||||
Sun 29 | Monday 30 | Tuesday 31 | Wednesday 1 | Thursday 2 | Friday 3 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  | | |  |  | | |  | | | | |
mod. snow | mod. snow | clear | some clouds | some clouds | some clouds | cloudy | some clouds | cloudy | light snow | heavy snow | mod. snow | light snow | cloudy | some clouds | cloudy | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
7 | 9 | — | — | — | — | — | — | — | 2 | 17 | 8 | 1 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -5 | -8 | -9 | -6 | -3 | -3 | -3 | -3 | -3 | -3 | -4 | -6 | -4 | -4 | -4 | -2 | -1 |
min °C | -5 | -10 | -9 | -7 | -5 | -4 | -3 | -4 | -4 | -4 | -7 | -7 | -5 | -4 | -4 | -2 | -1 |
-13 | -19 | -16 | -11 | -5 | -7 | -7 | -10 | -10 | -10 | -14 | -15 | -11 | -9 | -9 | -6 | -5 | |
900 | 300 | 600 | 1000 | 1100 | 1300 | 1400 | 1300 | 1200 | 1300 | 750 | 800 | 1050 | 1100 | 1150 | 1400 | 1600 | |
Cloud base (m) | 600 | 650 | 650 | 900 | 600 | 4050 | 1600 | 1500 | 1500 | 600 | 600 | 650 | 650 | 650 | 650 | 850 | 1000 |
 | — | — | 6:48 | — | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — |
 | 7:30 | — | — | 7:32 | — | — | 7:34 | — | — | 7:35 | — | — | 7:37 | — | — | 7:37 | — |
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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 afternoon. Temperatures will be below freezing (max -3°C on Mon night, min -10°C on Sun night). Winds decreasing (fresh winds from the WSW on Sun afternoon, calm by Mon night).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Wed night. Temperatures will be below freezing (max -1°C on Fri night, min -7°C on Wed 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.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
 | |||||
 | |||||
BUOY-46120 | |||||
Seattl / oeing Airport | | ||||
| |||||
* 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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