– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 pm Fri 12 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Fri 12 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Fri 12 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 54mm), heaviest during Mon morning. Very mild (max 11°C on Sat morning, min 4°C on Mon afternoon). Winds increasing (light winds from the S on Fri night, near gales from the SW by Mon afternoon). | Days 5–7 Weather SummaryHeavy rain (total 46mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 5°C on Tue afternoon, min -2°C on Tue night). Winds increasing (light winds from the SW on Mon night, near gales from the SW by Tue night). | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  |  |  |  | | |  |  | | |  | |  | |
rain shwrs | clear | some clouds | light rain | some clouds | light rain | heavy rain | heavy rain | mod. rain | light snow | mod. rain | heavy rain | heavy snow | light snow | light snow | heavy snow | mod. snow | mod. snow | mod. snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | 1 | — | — | 12 | 4 | 4 | 11 | 9 | 6 | 9 | |
0.6 | — | — | 3 | — | 0.2 | 24 | 20 | 6 | 10 | 10 | 14 | 13 | — | — | — | — | — | — | |
max°C | 7 | 11 | 11 | 9 | 8 | 7 | 8 | 9 | 7 | 3 | 4 | 5 | 4 | -1 | 0 | 1 | 0 | -2 | -2 |
min°C | 6 | 9 | 10 | 5 | 6 | 7 | 7 | 8 | 4 | 2 | 4 | 4 | -2 | -2 | -1 | 0 | 0 | -2 | -2 |
4 | 8 | 8 | 2 | 4 | 5 | 4 | 4 | -2 | -3 | 0 | 0 | -11 | -10 | -8 | -6 | -6 | -9 | -7 | |
3400 | 3150 | 3000 | 2300 | 2300 | 2250 | 2550 | 3000 | 2050 | 1300 | 1750 | 1750 | 1200 | 750 | 950 | 950 | 1100 | 700 | 650 | |
Cloud base (m) | 700 | 9200 | 2350 | 750 | 1700 | 750 | 600 | 600 | 650 | 600 | 550 | 550 | 600 | 600 | 600 | 550 | 550 | 600 | |
 | — | 7:47 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — | 7:50 | — | — |
 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:15 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Heavy rain (total 54mm), heaviest during Mon morning. Very mild (max 11°C on Sat morning, min 4°C on Mon afternoon). Winds increasing (light winds from the S on Fri night, near gales from the SW by Mon afternoon).
Mount Index Weather (Days 3-6):
Heavy rain (total 46mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 5°C on Tue afternoon, min -2°C on Tue night). Winds increasing (light winds from the SW on Mon night, near gales from the SW by Tue 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 | | ||||
| |||||
* 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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