– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 am Fri 12 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Fri 12 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Fri 12 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryModerate rain (total 19mm), heaviest on Sun night. Very mild (max 11°C on Sat morning, min 5°C on Sat night). Wind will be generally light. | Days 4–6 Weather SummaryHeavy rain (total 74mm) on Tue afternoon. Becoming colder with heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 9°C on Mon morning, min -2°C on Tue night). Mainly gales. | |||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  | |  |  |  | |  | | |  |  | | | |
light rain | light rain | rain shwrs | clear | some clouds | light rain | light rain | cloudy | heavy rain | heavy rain | heavy rain | light snow | heavy rain | heavy rain | mod. snow | light snow | light snow | light snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 6 | 4 | 3 | 5 | |
1.2 | 0.7 | 0.9 | — | — | 2 | 1.6 | — | 12 | 17 | 11 | 5 | 14 | 27 | — | — | — | — | |
max°C | 7 | 6 | 6 | 11 | 10 | 9 | 6 | 7 | 8 | 9 | 8 | 3 | 4 | 4 | -1 | -1 | 0 | 1 |
min°C | 7 | 6 | 6 | 8 | 10 | 5 | 5 | 7 | 7 | 8 | 5 | 2 | 3 | 4 | -2 | -1 | -1 | -1 |
4 | 3 | 3 | 6 | 8 | 2 | 2 | 5 | 4 | 5 | -1 | -2 | 1 | -1 | -11 | -8 | -6 | -6 | |
2650 | 2800 | 3300 | 3100 | 3000 | 2500 | 2050 | 2350 | 2500 | 2750 | 2300 | 1500 | 1550 | 1800 | 750 | 850 | 900 | 800 | |
Cloud base (m) | 650 | 650 | 650 | 9200 | 7000 | 5450 | 650 | 850 | 800 | 600 | 600 | 600 | 600 | 500 | 600 | 600 | 600 | 1550 |
 | 7:46 | — | — | 7:47 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — |
 | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Moderate rain (total 19mm), heaviest on Sun night. Very mild (max 11°C on Sat morning, min 5°C on Sat night). Wind will be generally light.
Mount Index Weather (Days 3-6):
Heavy rain (total 74mm) on Tue afternoon. Becoming colder with heavy fall of snow, heaviest during Wed morning. Freeze-thaw conditions (max 9°C on Mon morning, min -2°C on Tue night). Mainly gales.
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 | | ||||
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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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