– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 10 pm Tue 18 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Tue 18 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Tue 18 Aug Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Warm (max 25°C on Fri afternoon, min 14°C on Tue night). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 3mm), mostly falling on Sat morning. Warm (max 23°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light. | |||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | | | |  | |  |  |  | | | | | |
clear | clear | some clouds | clear | clear | clear | clear | cloudy | cloudy | rain shwrs | rain shwrs | risk tstorm | rain shwrs | rain shwrs | clear | clear | |
Cloud base (m) | 6750 | 4800 | 5750 | 3500 | 650 | 800 | 1650 | 700 | 9450 | |||||||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | 0.1 | 2 | 0.6 | 0.1 | 0.1 | — | — |
max °C | 17 | 17 | 20 | 18 | 19 | 22 | 20 | 23 | 25 | 22 | 14 | 13 | 12 | 12 | 17 | 15 |
min °C | 14 | 15 | 19 | 16 | 17 | 22 | 18 | 20 | 23 | 16 | 14 | 13 | 10 | 11 | 16 | 14 |
chill °C | 14 | 15 | 19 | 16 | 17 | 22 | 18 | 20 | 23 | 16 | 14 | 12 | 10 | 11 | 16 | 14 |
Freezing level m | 4500 | 4450 | 4350 | 4300 | 4300 | 4500 | 4550 | 4500 | 4400 | 4100 | 3550 | 3500 | 3750 | 3850 | 4000 | 4150 |
 | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — |
 | — | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:05 |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: Mostly dry. Warm (max 25°C on Fri afternoon, min 14°C on Tue night). Wind will be generally light.
Mount Index Weather (Days 3-6):
Light rain (total 3mm), mostly falling on Sat morning. Warm (max 23°C on Mon afternoon, min 10°C on Sat night). Wind will be generally light.
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-EBSW1 | |||||
BUOY-46120 | |||||
Seattl / oeing Airport | | ||||
SHIP8436 | |||||
SHIP13192 | |||||
SHIP9369 |
* 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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