– Lat/Long: 47.77° N 121.58° W
Mount Index
Weather Forecast, United StatesIssued: 9 pm Sun 25 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Sun 25 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Sun 25 Jan Local Time
Updates in:
Update imminent hr min s
2 Mount Index Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA moderate fall of snow, heaviest on Wed morning. Freeze-thaw conditions (max 3°C on Tue morning, min -4°C on Tue night). Winds increasing (light winds from the SW on Mon night, strong winds from the SW by Tue night). | Days 5–7 Weather SummaryLight rain (total 3mm) on Thu night. Becoming colder with heavy fall of snow, heaviest during Fri night. Freeze-thaw conditions (max 4°C on Fri night, min -1°C on Wed night). Winds increasing (light winds from the SW on Thu night, near gales from the SW by Fri night). | ||||||||||||||||||
Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | |  |  | |  | | |  |  | | | | |  | |
some clouds | some clouds | clear | some clouds | cloudy | cloudy | light snow | light snow | light snow | mod. snow | light snow | light snow | light rain | light rain | cloudy | mod. snow | light snow | light snow | clear | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | 2 | 5 | 5 | 7 | 2 | 2 | — | — | — | 7 | 5 | 1 | — | |
— | — | — | — | — | — | — | — | — | — | — | — | 3 | 0.3 | — | — | — | — | — | |
max °C | 0 | -2 | -2 | 1 | 3 | 2 | -2 | -1 | -1 | -1 | 1 | 2 | 3 | 3 | 3 | 4 | 1 | 0 | 3 |
min °C | -1 | -2 | -2 | -1 | 3 | 1 | -4 | -2 | -1 | -1 | 0 | 1 | 2 | 3 | 2 | 1 | -1 | -1 | 0 |
-6 | -7 | -7 | -6 | 0 | -4 | -11 | -9 | -8 | -8 | -6 | -4 | -2 | -2 | -2 | -6 | -9 | -7 | -3 | |
1850 | 1600 | 1450 | 1700 | 2250 | 2200 | 1300 | 1450 | 1650 | 1550 | 1800 | 2100 | 2250 | 2200 | 2200 | 2050 | 1900 | 1700 | 2000 | |
Cloud base (m) | 5700 | 3250 | 2800 | 5150 | 5350 | 1650 | 650 | 650 | 650 | 650 | 650 | 750 | 2350 | 3100 | 1800 | 650 | 650 | 1500 | |
 | — | 7:39 | — | — | 7:39 | — | — | 7:37 | — | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — |
 | — | — | 4:57 | — | — | 4:59 | — | — | 5:00 | — | — | 5:01 | — | — | 5:04 | — | — | 5:05 | — |
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Mount Index Weather (Days 0-3):
The weather forecast for Mount Index is: A moderate fall of snow, heaviest on Wed morning. Freeze-thaw conditions (max 3°C on Tue morning, min -4°C on Tue night). Winds increasing (light winds from the SW on Mon night, strong winds from the SW by Tue night).
Mount Index Weather (Days 3-6):
Light rain (total 3mm) on Thu night. Becoming colder with heavy fall of snow, heaviest during Fri night. Freeze-thaw conditions (max 4°C on Fri night, min -1°C on Wed night). Winds increasing (light winds from the SW on Thu night, near gales from the SW by Fri night).
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 |
|---|---|---|---|---|---|
 | |||||
SHIP5055 | |||||
| |||||
SHIP10367 | |||||
SHIP8810 | |||||
SHIP4721 | |||||
SHIP5217 | |||||
SHIP7286 |
* 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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