– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 pm Fri 06 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Fri 06 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Fri 06 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 31mm) on Sat night. Becoming colder with heavy fall of snow, heaviest during Sun night. Freeze-thaw conditions (max 6°C on Fri night, min -5°C on Mon morning). Wind will be generally light. | Days 5–7 Weather SummaryHeavy rain (total 24mm) on Wed night. Becoming colder with heavy fall of snow, heaviest during Thu afternoon. Freeze-thaw conditions (max 3°C on Wed afternoon, min -6°C on Mon night). Winds increasing (light winds from the SW on Mon night, gales from the SW by Wed night). | ||||||||||||||||||
Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  |  | | | | | |  | | | |  | | | |
mod. rain | light rain | light rain | heavy rain | mod. snow | light snow | heavy snow | mod. snow | mod. snow | heavy snow | light snow | light snow | mod. snow | light snow | light snow | mod. snow | heavy snow | heavy snow | heavy snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | 7 | 3 | 11 | 6 | 8 | 15 | 4 | 3 | 8 | 4 | 3 | 8 | 12 | 16 | 12 | |
8 | 1.1 | 3 | 19 | — | — | — | — | — | — | — | — | — | — | 7 | 17 | — | — | — | |
max °C | 6 | 6 | 6 | 6 | 1 | -3 | -4 | -4 | -4 | -4 | -3 | -3 | -1 | 1 | 3 | 3 | -3 | -4 | -5 |
min °C | 4 | 6 | 5 | 4 | -3 | -4 | -4 | -5 | -4 | -6 | -4 | -3 | -2 | 0 | 2 | -2 | -4 | -4 | -5 |
1 | 4 | 2 | 0 | -8 | -11 | -9 | -11 | -10 | -10 | -9 | -8 | -8 | -6 | -5 | -7 | -9 | -10 | -10 | |
2200 | 2450 | 2500 | 2100 | 1200 | 650 | 400 | 400 | 400 | 250 | 400 | 600 | 700 | 1000 | 1300 | 1500 | 500 | 450 | 0 | |
Cloud base (m) | 650 | 650 | 650 | 600 | 600 | 600 | 600 | 600 | 650 | 650 | 650 | 650 | 650 | 600 | 600 | 600 | 650 | 650 | 650 |
 | — | 6:35 | — | — | 7:33 | — | — | 6:31 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — |
 | — | — | 6:00 | — | — | 7:00 | — | — | 6:02 | — | — | 6:04 | — | — | 6:06 | — | — | 6:07 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Heavy rain (total 31mm) on Sat night. Becoming colder with heavy fall of snow, heaviest during Sun night. Freeze-thaw conditions (max 6°C on Fri night, min -5°C on Mon morning). Wind will be generally light.
Mount Index Weather (Days 3-6):
Heavy rain (total 24mm) on Wed night. Becoming colder with heavy fall of snow, heaviest during Thu afternoon. Freeze-thaw conditions (max 3°C on Wed afternoon, min -6°C on Mon night). Winds increasing (light winds from the SW on Mon night, gales from the SW by Wed 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 | | ||||
SHIP5703 | |||||
SHIP6852 | |||||
SHIP3918 |
* 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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