– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 3 am Thu 05 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Thu 05 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Thu 05 Mar Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryA light covering of new snow mostly falling on Thu night will be washed away by heavy rain (total 40mm) on Sat night. Freeze-thaw conditions (max 5°C on Sat morning, min 0°C on Thu morning). Wind will be generally light. | Days 4–6 Weather SummaryModerate rain (total 20mm) on Sun morning. Becoming colder with heavy fall of snow, heaviest during Mon afternoon. Freeze-thaw conditions (max 5°C on Sun morning, min -5°C on Mon night). Winds decreasing (fresh winds from the SW on Sun afternoon, light winds from the W by Tue morning). | |||||||||||||||||
Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | |  |  |  | |  |  |  | | | | |
light snow | cloudy | light snow | light rain | light rain | mod. rain | light rain | light rain | heavy rain | heavy rain | mod. rain | light snow | mod. snow | heavy snow | heavy snow | light snow | light snow | light snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
2 | — | 3 | — | — | — | — | — | — | — | — | 5 | 8 | 12 | 17 | 5 | 2 | 5 | |
— | — | — | 3 | 4 | 10 | 0.9 | 2 | 21 | 12 | 7 | — | — | — | — | — | — | — | |
max °C | 0 | 0 | 1 | 3 | 3 | 4 | 5 | 5 | 5 | 5 | 4 | 1 | -3 | -3 | -4 | -4 | -3 | -3 |
min °C | 0 | 0 | 0 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 3 | -3 | -3 | -4 | -5 | -5 | -4 | -5 |
-4 | -3 | -3 | 0 | 1 | 0 | 2 | 2 | 2 | 1 | -3 | -9 | -8 | -12 | -10 | -10 | -9 | -10 | |
950 | 1000 | 1050 | 1400 | 1600 | 2100 | 2550 | 2300 | 2200 | 1900 | 1700 | 900 | 600 | 500 | 300 | 400 | 600 | 0 | |
Cloud base (m) | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 600 | 600 | 600 | 600 | 600 | 600 | 600 | 650 | 650 | 1600 |
 | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 7:33 | — | — | 6:31 | — | — | 6:28 | — | — |
 | — | 5:57 | — | — | 5:58 | — | — | 6:00 | — | — | 7:00 | — | — | 6:02 | — | — | 6:04 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A light covering of new snow mostly falling on Thu night will be washed away by heavy rain (total 40mm) on Sat night. Freeze-thaw conditions (max 5°C on Sat morning, min 0°C on Thu morning). Wind will be generally light.
Mount Index Weather (Days 3-6):
Moderate rain (total 20mm) on Sun morning. Becoming colder with heavy fall of snow, heaviest during Mon afternoon. Freeze-thaw conditions (max 5°C on Sun morning, min -5°C on Mon night). Winds decreasing (fresh winds from the SW on Sun afternoon, light winds from the W by Tue morning).
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 |
|---|---|---|---|---|---|
 | |||||
| |||||
 | |||||
BUOY-46120 | |||||
Seattl / oeing Airport | | ||||
SHIP4872 | |||||
SHIP3839 | |||||
SHIP6910 |
* 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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