– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 pm Mon 16 Feb Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Mon 16 Feb Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Mon 16 Feb Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA moderate fall of snow, heaviest on Mon afternoon. Temperatures will be well below freezing (max -8°C on Mon afternoon, min -11°C on Wed morning). Wind will be generally light. | Days 5–7 Weather SummaryA moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 1°C on Sun morning, min -11°C on Thu night). Winds increasing (light winds from the SSW on Fri afternoon, fresh winds from the SE by Sun morning). | ||||||||||||||||
Mon 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | | |  |  | | | | | | |  | | |
light snow | snow shwrs | light snow | snow shwrs | light snow | light snow | light snow | some clouds | some clouds | some clouds | light snow | light snow | snow shwrs | some clouds | some clouds | cloudy | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
5 | 1 | 1 | 1 | 2 | 2 | 1 | — | — | — | 4 | 5 | 1 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -8 | -9 | -9 | -8 | -9 | -10 | -10 | -10 | -9 | -10 | -10 | -9 | -7 | -5 | -4 | -3 | 0 |
min °C | -9 | -10 | -9 | -9 | -10 | -11 | -10 | -10 | -10 | -10 | -11 | -10 | -8 | -7 | -4 | -3 | -3 |
-16 | -18 | -14 | -9 | -16 | -17 | -14 | -14 | -14 | -16 | -18 | -17 | -12 | -10 | -10 | -10 | -10 | |
750 | 250 | 650 | 700 | 0 | 400 | 500 | 0 | 400 | 550 | 0 | 450 | 650 | 0 | 950 | 1100 | 1050 | |
Cloud base (m) | 1900 | 550 | 1600 | 1300 | 600 | 600 | 600 | 700 | 1400 | 700 | 600 | 600 | 600 | 750 | 1900 | 1550 | 650 |
 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — |
 | 5:30 | — | — | 5:31 | — | — | 5:34 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A moderate fall of snow, heaviest on Mon afternoon. Temperatures will be well below freezing (max -8°C on Mon afternoon, min -11°C on Wed morning). Wind will be generally light.
Mount Index Weather (Days 3-6):
A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 1°C on Sun morning, min -11°C on Thu night). Winds increasing (light winds from the SSW on Fri afternoon, fresh winds from the SE by Sun morning).
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 | | ||||
SHIP5401 | |||||
SHIP6638 | |||||
SHIP8150 |
* 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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