– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Wed 30 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Wed 30 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Mild temperatures (max 8°C on Sat afternoon, min 1°C on Wed night). Winds decreasing (fresh winds from the W on Thu night, calm by Fri night). | Days 5–7 Weather SummaryMostly dry. Very mild (max 10°C on Sun afternoon, min 6°C on Mon afternoon). Winds increasing (calm on Sat night, fresh winds from the W by Mon afternoon). | |||||||||||||||
Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | Monday 5 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | |  |  |  |  |  | | | | | | | |
some clouds | cloudy | cloudy | some clouds | cloudy | light rain | rain shwrs | some clouds | clear | clear | clear | clear | clear | clear | some clouds | clear | |
Cloud base (m) | 2900 | 2600 | 2450 | 2700 | 2400 | 6600 | 8250 | 9300 | 8950 | 7150 | 6850 | 6800 | 9450 | |||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | 0.2 | 0.1 | — | — | — | — | — | — | — | — | — |
max °C | 2 | 3 | 4 | 3 | 2 | 3 | 6 | 7 | 8 | 7 | 9 | 10 | 8 | 8 | 7 | 7 |
min °C | 1 | 2 | 3 | 2 | 2 | 2 | 2 | 6 | 8 | 7 | 7 | 9 | 8 | 7 | 6 | 6 |
chill °C | -3 | -3 | -3 | -4 | -4 | -3 | -3 | 5 | 6 | 6 | 6 | 6 | 5 | 3 | 1 | 2 |
Freezing level m | 2900 | 3300 | 3250 | 3100 | 3000 | 2950 | 3800 | 3900 | 4000 | 4100 | 4150 | 4050 | 4050 | 3800 | 3600 | 4050 |
 | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — |
 | — | — | 6:43 | — | — | 6:40 | — | — | 6:38 | — | — | 6:37 | — | — | 6:35 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: Mostly dry. Mild temperatures (max 8°C on Sat afternoon, min 1°C on Wed night). Winds decreasing (fresh winds from the W on Thu night, calm by Fri night).
Fortress Mountain Weather (Days 3-6):
Mostly dry. Very mild (max 10°C on Sun afternoon, min 6°C on Mon afternoon). Winds increasing (calm on Sat night, fresh winds from the W by Mon afternoon).
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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SHIP6108 |
* 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.