– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 pm Sun 25 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sun 25 Oct Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -4°C on Sun afternoon, min -9°C on Tue afternoon). Winds increasing (calm on Mon afternoon, fresh winds from the W by Tue afternoon). | Days 5–7 Weather SummaryA light covering of new snow mostly falling on Wed afternoon. Temperatures will be well below freezing (max -7°C on Thu night, min -9°C on Wed afternoon). Winds increasing (calm on Wed afternoon, fresh winds from the SSE by Thu night). | ||||||||||||||||
Sun 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | |  |  | | |  | | | |  | |  | |
light snow | light snow | cloudy | cloudy | light snow | cloudy | snow shwrs | heavy snow | light snow | snow shwrs | cloudy | snow shwrs | snow shwrs | light snow | some clouds | some clouds | some clouds | |
Cloud base (m) | 1600 | 1700 | 1700 | 1700 | 1600 | 1600 | 1600 | 1600 | 1600 | 1600 | 1650 | 1600 | 1600 | 1600 | 1600 | 1800 | 1900 |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | 4 | 1 | — | — | 1 | — | 2 | 20 | 2 | 2 | — | 1 | 1 | 3 | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -4 | -4 | -4 | -4 | -6 | -7 | -8 | -9 | -9 | -9 | -9 | -9 | -8 | -7 | -7 | -7 | -7 |
min °C | -5 | -5 | -5 | -5 | -7 | -7 | -9 | -9 | -9 | -9 | -9 | -9 | -8 | -7 | -8 | -7 | -8 |
chill °C | -12 | -13 | -11 | -9 | -15 | -14 | -19 | -19 | -14 | -13 | -12 | -18 | -16 | -15 | -14 | -13 | -14 |
Freezing level m | 1700 | 1600 | 2000 | 1800 | 1600 | 1550 | 1400 | 1100 | 1400 | 1450 | 1100 | 1400 | 1450 | 1300 | 1600 | 1700 | 1050 |
 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:43 | — | — | 7:45 | — | — |
 | 5:57 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — | 5:47 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A heavy fall of snow, heaviest during Tue night. Temperatures will be below freezing (max -4°C on Sun afternoon, min -9°C on Tue afternoon). Winds increasing (calm on Mon afternoon, fresh winds from the W by Tue afternoon).
Fortress Mountain Weather (Days 3-6):
A light covering of new snow mostly falling on Wed afternoon. Temperatures will be well below freezing (max -7°C on Thu night, min -9°C on Wed afternoon). Winds increasing (calm on Wed afternoon, fresh winds from the SSE by Thu night).
This table gives the weather forecast for Fortress Mountain at the specific elevation of 2670 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Fortress Mountain. 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 |
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Winthrop Airport (Washington) |  | ||||
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* 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.