– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 am Wed 31 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Wed 31 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Wed 31 Dec Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryMild at first with light rain (total 4mm) on Thu night followed by colder weather and light fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 6°C on Wed morning, min 0°C on Thu night). Winds increasing (calm on Thu morning, strong winds from the SW by Fri morning). | Days 4–6 Weather SummaryA moderate fall of snow, heaviest on Sat night. Freeze-thaw conditions (max 1°C on Sat afternoon, min -4°C on Mon afternoon). Winds decreasing (fresh winds from the SSW on Sun morning, calm by Mon night). | |||||||||||||||||
Wednesday 31 | Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | Monday 5 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  |  |  | |  | | | | | | | | | |
clear | clear | some clouds | some clouds | some clouds | light snow | light snow | cloudy | some clouds | snow shwrs | cloudy | light snow | light snow | cloudy | light snow | light snow | light snow | some clouds | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | 5 | 5 | — | — | 1 | — | 4 | 2 | — | 4 | 1 | 2 | — | |
— | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 6 | 6 | 6 | 4 | 3 | 2 | 0 | 0 | 3 | 0 | 1 | 0 | -1 | 1 | 0 | -2 | -4 | -3 |
min °C | 6 | 6 | 5 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | -1 | -1 | 0 | -2 | -3 | -4 | -3 |
4 | 4 | 2 | 3 | -1 | -5 | -8 | -6 | -5 | -5 | -5 | -6 | -8 | -5 | -7 | -7 | -8 | -3 | |
3200 | 3200 | 3100 | 2550 | 2350 | 2200 | 1900 | 1800 | 2050 | 1800 | 1900 | 1600 | 1650 | 1850 | 1450 | 1500 | 1100 | 1200 | |
Cloud base (m) | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 1400 | 700 | 550 | 550 | 650 | 600 | 600 | 650 | 600 |
 | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — |
 | — | 4:22 | — | — | 4:24 | — | — | 4:25 | — | — | 4:27 | — | — | 4:28 | — | — | 4:29 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Mild at first with light rain (total 4mm) on Thu night followed by colder weather and light fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 6°C on Wed morning, min 0°C on Thu night). Winds increasing (calm on Thu morning, strong winds from the SW by Fri morning).
Mount Index Weather (Days 3-6):
A moderate fall of snow, heaviest on Sat night. Freeze-thaw conditions (max 1°C on Sat afternoon, min -4°C on Mon afternoon). Winds decreasing (fresh winds from the SSW on Sun morning, calm by Mon night).
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 |
|---|---|---|---|---|---|
 | |||||
SHIP3378 | |||||
| |||||
SHIP4673 | |||||
SHIP8963 | |||||
SHIP10142 | |||||
SHIP10026 | |||||
SHIP5193 |
* 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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