– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Wed 23 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Wed 23 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 5°C on Thu morning, min -7°C on Fri night). Mainly strong winds. | Days 5–7 Weather SummaryA dusting of new snow. Temperatures will be below freezing (max 0°C on Tue morning, min -4°C on Sun night). Winds increasing (calm on Sat night, near gales from the W by Tue afternoon). | |||||||||||||||
Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  | | | | | | | | | | |
some clouds | some clouds | cloudy | light snow | snow shwrs | snow shwrs | snow shwrs | some clouds | some clouds | some clouds | cloudy | some clouds | some clouds | some clouds | some clouds | some clouds | |
Cloud base (m) | 1600 | 4950 | 3150 | 2300 | 1750 | 1650 | 1600 | 1600 | 1850 | 6400 | 5350 | 4900 | 2200 | 2000 | 2100 | 1600 |
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | 5 | 3 | 2 | 5 | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 3 | 5 | 5 | 5 | -2 | -2 | -5 | -3 | -2 | -2 | -1 | -1 | -3 | -4 | -3 | -2 |
min °C | 1 | 3 | 4 | 0 | -2 | -2 | -7 | -6 | -3 | -2 | -2 | -1 | -4 | -4 | -3 | -3 |
chill °C | -4 | -1 | -1 | -6 | -7 | -6 | -16 | -14 | -7 | -4 | -5 | -4 | -12 | -12 | -9 | -9 |
Freezing level m | 3350 | 3400 | 3450 | 2850 | 2400 | 2350 | 1550 | 2100 | 2400 | 2200 | 2550 | 2500 | 1950 | 2250 | 2300 | 2050 |
 | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — |
 | — | — | 6:58 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 5°C on Thu morning, min -7°C on Fri night). Mainly strong winds.
Fortress Mountain Weather (Days 3-6):
A dusting of new snow. Temperatures will be below freezing (max 0°C on Tue morning, min -4°C on Sun night). Winds increasing (calm on Sat night, near gales from the W by Tue 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.
* 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.