– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Sun 27 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sun 27 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Tue afternoon. Freeze-thaw conditions (max 3°C on Wed afternoon, min -2°C on Tue night). Winds increasing (light winds from the W on Sun night, gales from the W by Mon night). | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 10°C on Sat afternoon, min 0°C on Fri morning). Winds decreasing (strong winds from the WSW on Thu afternoon, calm by Fri night). | |||||||||||||||
Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  | | | |  | |  | |  | | |
clear | clear | some clouds | cloudy | light snow | light snow | some clouds | clear | clear | some clouds | cloudy | cloudy | rain shwrs | some clouds | rain shwrs | clear | |
Cloud base (m) | 8300 | 2900 | 1900 | 1600 | 1600 | 1650 | 5050 | 3050 | 2600 | 2400 | 2500 | 2700 | 2300 | 9400 | ||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | 2 | 3 | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 0.2 | — | 0.1 | — |
max °C | 1 | 1 | 1 | 1 | 1 | 1 | -1 | 2 | 3 | 3 | 3 | 4 | 2 | 2 | 4 | 6 |
min °C | 0 | 0 | 1 | 0 | 1 | 1 | -2 | -1 | 2 | 2 | 3 | 3 | 1 | 0 | 3 | 5 |
chill °C | -2 | -5 | -5 | -6 | -7 | -7 | -10 | -7 | -2 | -2 | -2 | -3 | -5 | -5 | 0 | 2 |
Freezing level m | 2750 | 2800 | 2800 | 3100 | 2900 | 2950 | 2200 | 3050 | 3100 | 3150 | 3300 | 3250 | 2950 | 2950 | 3450 | 3900 |
 | — | 6:58 | — | — | 6:58 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — |
 | — | — | 6:49 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:40 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A light covering of new snow mostly falling on Tue afternoon. Freeze-thaw conditions (max 3°C on Wed afternoon, min -2°C on Tue night). Winds increasing (light winds from the W on Sun night, gales from the W by Mon night).
Fortress Mountain Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 10°C on Sat afternoon, min 0°C on Fri morning). Winds decreasing (strong winds from the WSW on Thu afternoon, calm by Fri 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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BUOY-PBFW1 |
* 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.