– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 10 pm Wed 18 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Wed 18 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Wed 18 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 109mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Sat morning. Freeze-thaw conditions (max 8°C on Wed night, min -3°C on Sat morning). Winds decreasing (strong winds from the SW on Wed night, light winds from the W by Sat afternoon). | Days 5–7 Weather SummaryA light covering of new snow mostly falling on Tue morning. Freeze-thaw conditions (max 4°C on Mon afternoon, min -3°C on Sat night). Winds increasing (calm on Sun night, gales from the SW by Tue afternoon). | ||||||||||||||||||
Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | |  |  |  |  |  | | |  | | | | |  | |
heavy rain | heavy rain | mod. rain | heavy rain | heavy rain | heavy rain | mod. rain | light snow | snow shwrs | some clouds | some clouds | some clouds | some clouds | cloudy | some clouds | some clouds | light snow | light snow | mod. snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | 4 | 4 | 7 | |
20 | 14 | 7 | 31 | 12 | 20 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 8 | 7 | 7 | 8 | 7 | 6 | 5 | -3 | -1 | -2 | 1 | 2 | 1 | 2 | 4 | 2 | 0 | 1 | -4 |
min °C | 7 | 7 | 7 | 7 | 7 | 6 | -1 | -3 | -2 | -3 | -1 | 2 | 0 | 2 | 3 | 0 | 0 | 1 | -5 |
4 | 3 | 4 | 3 | 4 | 3 | -4 | -8 | -5 | -3 | -1 | 0 | 0 | 2 | 3 | -4 | -3 | -4 | -14 | |
2600 | 2500 | 2900 | 2650 | 2600 | 2100 | 1150 | 650 | 850 | 550 | 1200 | 1300 | 1000 | 1400 | 1450 | 1400 | 1050 | 1100 | 200 | |
Cloud base (m) | 600 | 650 | 600 | 600 | 600 | 600 | 700 | 650 | 650 | 650 | 5050 | 950 | 750 | 650 | 1800 | 2200 | 550 | 550 | 650 |
 | — | 7:11 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — |
 | — | — | 7:16 | — | — | 7:17 | — | — | 7:20 | — | — | 7:21 | — | — | 7:22 | — | — | 7:23 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Heavy rain (total 109mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Sat morning. Freeze-thaw conditions (max 8°C on Wed night, min -3°C on Sat morning). Winds decreasing (strong winds from the SW on Wed night, light winds from the W by Sat afternoon).
Mount Index Weather (Days 3-6):
A light covering of new snow mostly falling on Tue morning. Freeze-thaw conditions (max 4°C on Mon afternoon, min -3°C on Sat night). Winds increasing (calm on Sun night, gales from the SW by Tue afternoon).
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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