– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 10 am Tue 24 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Tue 24 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Tue 24 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 7mm) on Tue morning. Becoming colder with heavy fall of snow, heaviest during Wed night. Freeze-thaw conditions (max 2°C on Tue morning, min -10°C on Wed night). Winds decreasing (gales from the SW on Tue afternoon, light winds from the SW by Thu night). | Days 4–6 Weather SummaryA moderate fall of snow, heaviest on Sun morning. Freeze-thaw conditions (max 2°C on Fri night, min -9°C on Sun night). Winds increasing (light winds from the SSE on Fri morning, fresh winds from the WSW by Sun morning). | |||||||||||||||||
Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | Sunday 29 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  |  |  |  |  | |  |  | | |  | | |  | |
light snow | light snow | light snow | light snow | mod. snow | heavy snow | snow shwrs | some clouds | clear | some clouds | cloudy | cloudy | some clouds | some clouds | some clouds | mod. snow | light snow | snow shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
2 | 4 | 4 | 2 | 9 | 17 | 1 | — | — | — | — | — | — | — | — | 7 | 4 | 1 | |
7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 2 | 1 | -3 | -6 | -5 | -9 | -9 | -6 | -2 | -1 | 1 | 2 | 0 | -2 | -3 | -6 | -7 | -9 |
min °C | 2 | 0 | -6 | -6 | -8 | -10 | -10 | -7 | -6 | -1 | 0 | 1 | 0 | -2 | -6 | -7 | -8 | -9 |
-6 | -9 | -14 | -14 | -18 | -18 | -16 | -12 | -9 | -4 | -4 | -2 | -4 | -7 | -14 | -16 | -16 | -16 | |
2400 | 1850 | 1100 | 1000 | 800 | 500 | 750 | 1050 | 0 | 1700 | 2050 | 2200 | 1750 | 1450 | 1000 | 800 | 750 | 0 | |
Cloud base (m) | 600 | 650 | 600 | 600 | 700 | 650 | 700 | 1000 | 650 | 650 | 1600 | 650 | 2800 | 850 | 600 | 600 | 650 | |
 | 7:01 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — |
 | — | 7:23 | — | — | 7:24 | — | — | 7:27 | — | — | 7:28 | — | — | 7:30 | — | — | 7:30 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Light rain (total 7mm) on Tue morning. Becoming colder with heavy fall of snow, heaviest during Wed night. Freeze-thaw conditions (max 2°C on Tue morning, min -10°C on Wed night). Winds decreasing (gales from the SW on Tue afternoon, light winds from the SW by Thu night).
Mount Index Weather (Days 3-6):
A moderate fall of snow, heaviest on Sun morning. Freeze-thaw conditions (max 2°C on Fri night, min -9°C on Sun night). Winds increasing (light winds from the SSE on Fri morning, fresh winds from the WSW 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 |
|---|---|---|---|---|---|
 | |||||
SHIP9761 | |||||
| |||||
SHIP6174 | |||||
SHIP8254 | |||||
| |||||
SHIP3436 | |||||
 |
* 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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