– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 10 pm Thu 19 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Thu 19 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Thu 19 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 53mm), mostly on Fri morning. Becoming colder with a light covering of snow ,mostly falling on Fri afternoon. Freeze-thaw conditions (max 5°C on Thu night, min -7°C on Sat morning). Winds decreasing (near gales from the SW on Thu night, light winds from the WSW by Sun morning). | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -1°C on Sun night, min -9°C on Tue night). Winds increasing (light winds from the WSW on Mon night, severe gales from the SW by Tue night). | ||||||||||||||||||
Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | |  |  | | | |  | | |  | | |  | |
heavy rain | heavy rain | mod. snow | some clouds | light snow | snow shwrs | some clouds | clear | some clouds | some clouds | some clouds | some clouds | light snow | mod. snow | light snow | heavy snow | mod. snow | mod. snow | snow shwrs | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | 6 | — | 2 | 1 | — | — | — | — | — | — | 1 | 10 | 2 | 19 | 8 | 9 | 13 | |
32 | 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 5 | 3 | 2 | -1 | -7 | -6 | -6 | -5 | -3 | -1 | -2 | -2 | -1 | -1 | -1 | -3 | -9 | -9 | -9 |
min °C | 4 | 2 | 0 | -5 | -7 | -7 | -7 | -5 | -3 | -3 | -3 | -3 | -3 | -2 | -1 | -9 | -9 | -9 | -10 |
-2 | -5 | -7 | -12 | -14 | -14 | -13 | -10 | -8 | -7 | -8 | -8 | -7 | -10 | -9 | -22 | -21 | -19 | -20 | |
2750 | 2300 | 1900 | 1150 | 700 | 950 | 600 | 1050 | 1300 | 1450 | 1200 | 1350 | 1650 | 1600 | 1600 | 600 | 600 | 650 | 0 | |
Cloud base (m) | 600 | 600 | 600 | 750 | 650 | 700 | 700 | 650 | 1550 | 750 | 700 | 1600 | 2550 | 650 | 700 | 600 | 650 | 700 | 750 |
 | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — | 6:58 | — | — |
 | — | — | 7:17 | — | — | 7:20 | — | — | 7:21 | — | — | 7:22 | — | — | 7:23 | — | — | 7:24 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Heavy rain (total 53mm), mostly on Fri morning. Becoming colder with a light covering of snow ,mostly falling on Fri afternoon. Freeze-thaw conditions (max 5°C on Thu night, min -7°C on Sat morning). Winds decreasing (near gales from the SW on Thu night, light winds from the WSW by Sun morning).
Mount Index Weather (Days 3-6):
A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -1°C on Sun night, min -9°C on Tue night). Winds increasing (light winds from the WSW on Mon night, severe gales from the SW by Tue 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 |
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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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