– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 10 am Sun 30 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Sun 30 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Sun 30 Aug Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Very mild (max 14°C on Mon afternoon, min 4°C on Sun morning). Wind will be generally light. | Days 4–6 Weather SummaryHeavy rain (total 25mm), mostly on Wed night. Becoming colder with a light covering of snow, mostly falling on Thu morning. Freeze-thaw conditions (max 5°C on Wed morning, min 0°C on Thu morning). Wind will be generally light. | |||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | |  | | |  |  | |  | | |  | |
light rain | rain shwrs | clear | clear | clear | some clouds | some clouds | clear | light rain | rain shwrs | light rain | heavy rain | light snow | light snow | snow shwrs | some clouds | some clouds | rain shwrs | |
Cloud base (m) | 750 | 1650 | 9300 | 8550 | 5450 | 8100 | 900 | 1850 | 1700 | 600 | 750 | 750 | 1450 | 2200 | 2200 | 2550 | ||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 2 | 1 | — | — | — |
mm | 0.7 | 0.1 | — | — | — | — | — | — | 0.1 | 0.2 | 3 | 21 | — | — | — | — | — | 1.1 |
max °C | 4 | 7 | 9 | 11 | 14 | 13 | 11 | 10 | 9 | 5 | 5 | 5 | 0 | 2 | 2 | 2 | 4 | 4 |
min °C | 4 | 6 | 7 | 10 | 13 | 12 | 10 | 10 | 5 | 5 | 5 | 3 | 0 | 1 | 1 | 2 | 4 | 4 |
chill °C | 1 | 3 | 4 | 10 | 13 | 11 | 9 | 9 | 2 | 2 | 1 | -2 | -6 | -4 | -3 | 0 | 3 | 4 |
Freezing level m | 3250 | 3400 | 3700 | 3850 | 3900 | 3900 | 3700 | 3550 | 3400 | 2700 | 2650 | 2450 | 1900 | 2100 | 2000 | 2200 | 2500 | 2350 |
 | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — |
 | — | 7:51 | — | — | 7:49 | — | — | 7:46 | — | — | 7:45 | — | — | 7:43 | — | — | 7:40 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Mostly dry. Very mild (max 14°C on Mon afternoon, min 4°C on Sun morning). Wind will be generally light.
Mount Index Weather (Days 3-6):
Heavy rain (total 25mm), mostly on Wed night. Becoming colder with a light covering of snow, mostly falling on Thu morning. Freeze-thaw conditions (max 5°C on Wed morning, min 0°C on Thu morning). Wind will be generally light.
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 |
|---|---|---|---|---|---|
 | |||||
 | |||||
BUOY-EBSW1 | |||||
BUOY-46120 | |||||
Seattl / oeing Airport | | ||||
|
* 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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