– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 4 pm Fri 20 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Fri 20 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Fri 20 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 8mm), mostly falling on Fri afternoon. Freeze-thaw conditions (max 6°C on Fri afternoon, min -2°C on Sat morning). Wind will be generally light. | Days 5–7 Weather SummaryModerate rain (total 10mm) on Tue afternoon. Becoming colder with heavy fall of snow, heaviest during Wed afternoon. Freeze-thaw conditions (max 5°C on Tue afternoon, min -3°C on Tue night). Winds increasing (calm on Mon night, near gales from the SW by Tue night). | ||||||||||||||||
Fri 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | | | | |  |  | |  |  | |  | |
mod. rain | rain shwrs | cloudy | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | light rain | light snow | mod. rain | mod. snow | mod. snow | mod. snow | heavy snow | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | 5 | — | 6 | 8 | 9 | 11 | |
7 | 1 | — | — | — | — | — | — | — | — | 0.2 | — | 8 | 2 | — | — | — | |
max °C | 6 | 3 | -2 | -1 | -2 | -1 | 2 | 1 | 2 | 4 | 3 | 1 | 5 | 2 | -2 | -2 | -3 |
min °C | 6 | 0 | -2 | -1 | -2 | -2 | 1 | 0 | 1 | 3 | 2 | 0 | 3 | -3 | -2 | -2 | -3 |
2 | -3 | -5 | -4 | -4 | -5 | -1 | 0 | 1 | 2 | 2 | -4 | -2 | -11 | -9 | -8 | -10 | |
1900 | 1150 | 750 | 950 | 500 | 850 | 1250 | 1550 | 1350 | 1400 | 1600 | 1250 | 1750 | 650 | 650 | 650 | 550 | |
Cloud base (m) | 600 | 650 | 650 | 650 | 650 | 750 | 700 | 650 | 6300 | 1750 | 2200 | 750 | 600 | 600 | 650 | 650 | 650 |
 | — | — | 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: Light rain (total 8mm), mostly falling on Fri afternoon. Freeze-thaw conditions (max 6°C on Fri afternoon, min -2°C on Sat morning). Wind will be generally light.
Mount Index Weather (Days 3-6):
Moderate rain (total 10mm) on Tue afternoon. Becoming colder with heavy fall of snow, heaviest during Wed afternoon. Freeze-thaw conditions (max 5°C on Tue afternoon, min -3°C on Tue night). Winds increasing (calm on Mon night, near gales from the SW by Tue night).
This table gives the weather forecast for Mount Index at the specific elevation of 1000 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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