– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 pm Thu 11 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Thu 11 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Thu 11 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Thu afternoon. Becoming milder with moderate rain (total 17mm) heaviest on Thu night. Freeze-thaw conditions (max 7°C on Sat morning, min 0°C on Thu afternoon). Mainly fresh winds. | Days 5–7 Weather SummaryHeavy rain (total 40mm) on Mon morning. Becoming colder with heavy fall of snow, heaviest during Tue afternoon. Freeze-thaw conditions (max 4°C on Mon morning, min -8°C on Tue night). Mainly severe gales. | ||||||||||||||||
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | |  |  | | |  |  |  |  |  |  | |
light snow | heavy rain | light rain | light rain | rain shwrs | some clouds | some clouds | some clouds | cloudy | cloudy | heavy rain | heavy rain | mod. rain | snow shwrs | mod. snow | heavy snow | heavy snow | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
5 | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 6 | 18 | 13 | |
— | 13 | 2 | 0.9 | 0.8 | — | — | — | — | — | 11 | 20 | 9 | — | — | — | — | |
max°C | 2 | 3 | 3 | 3 | 4 | 7 | 7 | 7 | 2 | 3 | 3 | 4 | 4 | -1 | -2 | -2 | -7 |
min°C | 0 | 3 | 3 | 3 | 3 | 6 | 7 | 2 | 2 | 3 | 3 | 4 | 3 | -5 | -3 | -6 | -8 |
-6 | -3 | -3 | -3 | -2 | 2 | 3 | -4 | -4 | -2 | -3 | -3 | -6 | -12 | -11 | -17 | -20 | |
2000 | 2550 | 2650 | 2900 | 3350 | 3200 | 3000 | 2750 | 2300 | 2450 | 2550 | 2700 | 2550 | 1300 | 1200 | 1500 | 750 | |
Cloud base (m) | 650 | 650 | 650 | 650 | 600 | 650 | 5500 | 1950 | 1500 | 600 | 600 | 550 | 650 | 600 | 500 | 550 | |
 | — | — | 7:46 | — | — | 7:47 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — |
 | 4:13 | — | — | 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: A light covering of new snow mostly falling on Thu afternoon. Becoming milder with moderate rain (total 17mm) heaviest on Thu night. Freeze-thaw conditions (max 7°C on Sat morning, min 0°C on Thu afternoon). Mainly fresh winds.
Mount Index Weather (Days 3-6):
Heavy rain (total 40mm) on Mon morning. Becoming colder with heavy fall of snow, heaviest during Tue afternoon. Freeze-thaw conditions (max 4°C on Mon morning, min -8°C on Tue night). Mainly severe gales.
This table gives the weather forecast for Mount Index at the specific elevation of 1832 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 | | ||||
SHIP3566 | |||||
SHIP3128 | |||||
SHIP7901 |
* 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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