– Lat/Long: 47.77° N 121.58° W
Mount Index Weather Forecast
Cascade Range · United StatesIssued: 10 pm Thu 15 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Thu 15 Oct Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 2mm) at first, then becoming colder with a dusting of snow on Sat morning. Freeze-thaw conditions (max 15°C on Thu night, min 0°C on Sat afternoon). Winds decreasing (fresh winds from the WSW on Sat morning, calm by Sun morning). | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 6°C on Wed afternoon, min -1°C on Tue morning). Wind will be generally light. | |||||||||||||||
Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | | |  | | | | | | | |
clear | clear | some clouds | rain shwrs | light snow | snow shwrs | clear | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | clear | clear | clear | |
Cloud base (m) | 9700 | 9300 | 8500 | 650 | 6550 | 4950 | 4300 | 2900 | 1700 | 9100 | ||||||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 15 | 15 | 13 | 11 | 2 | 0 | 2 | 3 | 5 | 5 | 3 | 2 | 2 | 0 | 1 | 5 |
min °C | 14 | 14 | 13 | 5 | 1 | 0 | 0 | 2 | 4 | 3 | 2 | 2 | 0 | -1 | 0 | 2 |
chill °C | 13 | 13 | 12 | 0 | -5 | -6 | -6 | 0 | 4 | 0 | -1 | -1 | -4 | -5 | -4 | 0 |
Freezing level m | 3850 | 3900 | 3750 | 3200 | 2000 | 1900 | 2100 | 2750 | 2950 | 2650 | 2400 | 2250 | 2000 | 1700 | 2400 | 3100 |
 | — | 7:26 | — | — | 7:26 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — |
 | — | — | 6:15 | — | — | 6:14 | — | — | 6:13 | — | — | 6:10 | — | — | 6:08 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Light rain (total 2mm) at first, then becoming colder with a dusting of snow on Sat morning. Freeze-thaw conditions (max 15°C on Thu night, min 0°C on Sat afternoon). Winds decreasing (fresh winds from the WSW on Sat morning, calm by Sun morning).
Mount Index Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 6°C on Wed afternoon, min -1°C on Tue 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 | |||||
Seattl / oeing Airport | | ||||
SHIP4467 | |||||
SHIP7505 |
* 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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