– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 pm Wed 10 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Wed 10 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Wed 10 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 88mm), heaviest during Wed afternoon. Very mild (max 11°C on Sat morning, min 3°C on Wed night). Winds decreasing (near gales from the SW on Wed afternoon, calm by Thu morning). | Days 5–7 Weather SummaryHeavy rain (total 32mm), heaviest during Mon afternoon. Later becoming colder with a dusting of snow on Mon night. Freeze-thaw conditions (max 10°C on Sat afternoon, min 0°C on Mon night). Winds increasing (light winds from the S on Sun afternoon, fresh winds from the SW by Mon afternoon). | ||||||||||||||||
Wed 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | |  |  | |  | | | | | |  | |
heavy rain | heavy rain | mod. rain | light rain | mod. rain | light rain | light rain | rain shwrs | clear | clear | light rain | light rain | light rain | mod. rain | mod. rain | heavy rain | light snow | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | |
27 | 43 | 6 | 3 | 6 | 2 | 0.8 | 0.4 | — | — | 4 | 0.3 | 0.2 | 8 | 6 | 12 | 1.6 | |
max°C | 9 | 9 | 3 | 4 | 6 | 7 | 7 | 6 | 11 | 10 | 9 | 6 | 7 | 8 | 7 | 8 | 2 |
min°C | 9 | 3 | 3 | 4 | 5 | 7 | 6 | 6 | 8 | 9 | 5 | 6 | 6 | 7 | 7 | 5 | 0 |
4 | 0 | 2 | 2 | 2 | 4 | 3 | 3 | 7 | 7 | 2 | 3 | 5 | 4 | 3 | 0 | -6 | |
3050 | 2200 | 1500 | 1900 | 2600 | 2750 | 2900 | 3300 | 3250 | 2900 | 2450 | 2150 | 2300 | 2550 | 2500 | 2400 | 1050 | |
Cloud base (m) | 600 | 600 | 650 | 650 | 650 | 650 | 650 | 800 | 1500 | 650 | 700 | 600 | 700 | 650 | 600 | ||
 | — | — | 7:45 | — | — | 7:46 | — | — | 7:47 | — | — | 7:47 | — | — | 7:48 | — | — |
 | 4:13 | — | — | 4:13 | — | — | 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: Heavy rain (total 88mm), heaviest during Wed afternoon. Very mild (max 11°C on Sat morning, min 3°C on Wed night). Winds decreasing (near gales from the SW on Wed afternoon, calm by Thu morning).
Mount Index Weather (Days 3-6):
Heavy rain (total 32mm), heaviest during Mon afternoon. Later becoming colder with a dusting of snow on Mon night. Freeze-thaw conditions (max 10°C on Sat afternoon, min 0°C on Mon night). Winds increasing (light winds from the S on Sun afternoon, fresh winds from the SW by Mon afternoon).
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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