– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 pm Thu 08 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Thu 08 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Thu 08 Jan Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA heavy fall of snow, heaviest during Sat night. Becoming milder with moderate rain (total 17mm) on Sun afternoon. Freeze-thaw conditions (max 3°C on Fri night, min -5°C on Thu night). Winds increasing (light winds from the WSW on Fri morning, strong winds from the SW by Sun afternoon). | Days 5–7 Weather SummaryHeavy rain (total 33mm), heaviest during Sun night. Later becoming colder with a dusting of snow on Wed morning. Freeze-thaw conditions (max 9°C on Tue afternoon, min -2°C on Wed afternoon). Winds decreasing (strong winds from the WSW on Sun night, calm by Tue morning). | ||||||||||||||||||
Friday 9 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  | |  |  |  |  |  |  | |  |  | | | |
light snow | light snow | cloudy | cloudy | some clouds | light snow | mod. snow | light snow | heavy rain | heavy rain | mod. rain | light rain | rain shwrs | clear | clear | clear | snow shwrs | some clouds | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
4 | 1 | — | — | — | 1 | 9 | 5 | — | — | — | — | — | — | — | — | 1 | — | — | |
— | — | — | — | — | — | — | — | 17 | 24 | 9 | 0.1 | 0.7 | — | — | — | — | — | — | |
max °C | -4 | -3 | 1 | 3 | 2 | 1 | 0 | 1 | 2 | 3 | 4 | 4 | 5 | 7 | 9 | 9 | 3 | -1 | -1 |
min °C | -5 | -4 | -1 | 2 | 2 | -1 | -2 | 1 | 2 | 2 | 3 | 4 | 4 | 6 | 7 | 5 | 0 | -2 | -1 |
-12 | -10 | -6 | -3 | -4 | -8 | -9 | -5 | -4 | -5 | -4 | -1 | -1 | 6 | 6 | 1 | -6 | -9 | -8 | |
950 | 1100 | 1600 | 2300 | 2150 | 1950 | 1700 | 2000 | 2300 | 2500 | 2400 | 2700 | 2700 | 3100 | 3300 | 3500 | 2400 | 1550 | 1250 | |
Cloud base (m) | 650 | 700 | 650 | 650 | 4000 | 700 | 650 | 650 | 650 | 650 | 650 | 650 | 700 | 850 | 650 | 9500 | 750 | 700 | |
 | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:50 | — | — |
 | — | — | 4:32 | — | — | 4:35 | — | — | 4:36 | — | — | 4:37 | — | — | 4:38 | — | — | 4:39 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A heavy fall of snow, heaviest during Sat night. Becoming milder with moderate rain (total 17mm) on Sun afternoon. Freeze-thaw conditions (max 3°C on Fri night, min -5°C on Thu night). Winds increasing (light winds from the WSW on Fri morning, strong winds from the SW by Sun afternoon).
Mount Index Weather (Days 3-6):
Heavy rain (total 33mm), heaviest during Sun night. Later becoming colder with a dusting of snow on Wed morning. Freeze-thaw conditions (max 9°C on Tue afternoon, min -2°C on Wed afternoon). Winds decreasing (strong winds from the WSW on Sun night, calm by Tue 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 |
|---|---|---|---|---|---|
 | |||||
SHIP4346 | |||||
| |||||
SHIP7716 | |||||
SHIP3841 | |||||
SHIP9322 | |||||
SHIP8968 | |||||
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* 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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