– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 pm Thu 11 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Thu 11 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Thu 11 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 18mm), heaviest on Thu night. Very mild (max 11°C on Sat morning, min 5°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryMild with heavy rain (total 98mm), heaviest during Tue afternoon. Becoming colder with a moderate fall of snow heaviest on Tue night. Freeze-thaw conditions (max 9°C on Mon morning, min -2°C on Tue night). Mainly near gales. | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  | | | | |  | |  | | |  |  | |  | |
heavy rain | light rain | light rain | rain shwrs | clear | some clouds | rain shwrs | light rain | light rain | heavy rain | heavy rain | heavy rain | mod. rain | heavy rain | heavy rain | mod. snow | light snow | light snow | heavy snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 4 | 4 | 12 | |
11 | 1.8 | 0.6 | 0.6 | — | — | 1.5 | 1.7 | 0.7 | 20 | 17 | 14 | 10 | 16 | 22 | — | — | — | — | |
max°C | 7 | 7 | 7 | 7 | 11 | 11 | 9 | 6 | 7 | 8 | 9 | 8 | 3 | 4 | 5 | -1 | -1 | -1 | -1 |
min°C | 5 | 7 | 6 | 6 | 9 | 10 | 5 | 5 | 6 | 6 | 8 | 5 | 3 | 3 | 4 | -2 | -1 | -1 | -1 |
2 | 4 | 3 | 3 | 8 | 8 | 2 | 3 | 4 | 3 | 4 | 0 | -2 | -2 | -2 | -8 | -7 | -6 | -7 | |
2500 | 2700 | 2850 | 3300 | 3150 | 3000 | 2650 | 2150 | 2150 | 2400 | 2700 | 2550 | 1400 | 1550 | 1750 | 800 | 800 | 900 | 850 | |
Cloud base (m) | 650 | 650 | 650 | 600 | 9250 | 7000 | 5600 | 1500 | 650 | 850 | 600 | 600 | 800 | 550 | 500 | 600 | 600 | 550 | 550 |
 | — | 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 18mm), heaviest on Thu night. Very mild (max 11°C on Sat morning, min 5°C on Thu night). Wind will be generally light.
Mount Index Weather (Days 3-6):
Mild with heavy rain (total 98mm), heaviest during Tue afternoon. Becoming colder with a moderate fall of snow heaviest on Tue night. Freeze-thaw conditions (max 9°C on Mon morning, min -2°C on Tue night). Mainly near 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 | | ||||
SHIP4042 | |||||
SHIP8725 | |||||
SHIP7650 |
* 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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