– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Sat 26 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sat 26 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 2°C on Mon night, min -2°C on Sat night). Winds increasing (calm on Sat night, near gales from the W by Mon night). | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 8°C on Thu afternoon, min -1°C on Tue night). Winds decreasing (strong winds from the W on Tue night, light winds from the SSW by Thu morning). | |||||||||||||||
Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | |  |  | | | | | | | | | |
some clouds | cloudy | clear | some clouds | some clouds | clear | cloudy | light snow | light snow | some clouds | clear | clear | some clouds | clear | some clouds | some clouds | |
Cloud base (m) | 6700 | 5750 | 2900 | 2600 | 1600 | 1600 | 1700 | 9350 | 6000 | |||||||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | 2 | 4 | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -1 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 0 | 2 | 3 | 4 | 7 | 8 | 6 |
min °C | -2 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | -1 | 0 | 3 | 3 | 5 | 7 | 3 |
chill °C | -2 | 0 | 0 | -3 | -5 | -4 | -6 | -7 | -7 | -9 | -5 | 0 | 0 | 3 | 4 | -3 |
Freezing level m | 2400 | 2750 | 2800 | 2950 | 2800 | 2750 | 3200 | 2900 | 3000 | 2550 | 3150 | 3200 | 3500 | 3850 | 3850 | 3500 |
 | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | — | 6:51 | — | — | 6:49 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — |
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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 2°C on Mon night, min -2°C on Sat night). Winds increasing (calm on Sat night, near gales from the W by Mon night).
Fortress Mountain Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 8°C on Thu afternoon, min -1°C on Tue night). Winds decreasing (strong winds from the W on Tue night, light winds from the SSW by Thu morning).
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.
* 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.