– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 am Wed 18 Feb Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Wed 18 Feb Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Wed 18 Feb Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryA dusting of new snow. Temperatures will be below freezing (max -5°C on Fri night, min -11°C on Thu afternoon). Wind will be generally light. | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Mon morning. Temperatures will be below freezing (max 0°C on Sun night, min -6°C on Mon night). Winds increasing (light winds from the ESE on Sat morning, strong winds from the SW by Mon afternoon). | |||||||||||||||||
Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | | | |  | | | | |  |  | |  | |
light snow | snow shwrs | cloudy | light snow | cloudy | some clouds | cloudy | cloudy | cloudy | some clouds | some clouds | some clouds | some clouds | cloudy | snow shwrs | mod. snow | light snow | heavy snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
2 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 7 | 3 | 11 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -9 | -9 | -9 | -10 | -10 | -9 | -8 | -7 | -5 | -4 | -3 | -2 | -2 | -1 | 0 | -1 | -5 | -4 |
min °C | -10 | -9 | -9 | -10 | -11 | -11 | -9 | -8 | -7 | -5 | -4 | -3 | -2 | -2 | -2 | -4 | -5 | -6 |
-16 | -14 | -12 | -10 | -17 | -17 | -15 | -14 | -11 | -11 | -10 | -10 | -8 | -7 | -7 | -13 | -15 | -15 | |
500 | 650 | 350 | 450 | 400 | 0 | 450 | 650 | 200 | 900 | 1100 | 950 | 1400 | 1400 | 1400 | 1700 | 1150 | 850 | |
Cloud base (m) | 600 | 700 | 1950 | 600 | 600 | 650 | 650 | 650 | 750 | 650 | 2000 | 650 | 1950 | 1800 | 1600 | 700 | 650 | 1750 |
 | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — | 6:58 | — | — | 6:56 | — | — |
 | — | 5:34 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:42 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A dusting of new snow. Temperatures will be below freezing (max -5°C on Fri night, min -11°C on Thu afternoon). Wind will be generally light.
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Mon morning. Temperatures will be below freezing (max 0°C on Sun night, min -6°C on Mon night). Winds increasing (light winds from the ESE on Sat morning, strong winds from the SW by Mon afternoon).
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 | | ||||
SHIP8804 | |||||
SHIP3320 | |||||
SHIP8312 |
* 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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