– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 am Mon 28 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Mon 28 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA light covering of new snow mostly falling on Mon night. Freeze-thaw conditions (max 2°C on Mon night, min -2°C on Tue night). Winds decreasing (gales from the W on Mon night, light winds from the W by Wed night). | Days 4–6 Weather SummaryA moderate fall of snow, heaviest on Thu afternoon. Freeze-thaw conditions (max 8°C on Sat afternoon, min -1°C on Thu afternoon). Winds decreasing (fresh winds from the WSW on Thu night, calm by Fri night). | |||||||||||||||||
Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  |  | |  | |  | | | |  | | | | |
some clouds | some clouds | light snow | light snow | light snow | snow shwrs | clear | clear | some clouds | light snow | mod. snow | light snow | light snow | some clouds | clear | clear | clear | clear | |
Cloud base (m) | 5900 | 2900 | 1700 | 1600 | 1600 | 1700 | 5900 | 3400 | 1800 | 1600 | 1600 | 1600 | 1900 | 9500 | ||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | 1 | 2 | 2 | 1 | — | — | — | 1 | 8 | 1 | 2 | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 1 | 1 | 2 | 2 | 1 | -1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 2 | 4 | 6 | 8 | 7 |
min °C | 1 | 1 | 0 | 1 | 1 | -2 | -1 | 1 | -2 | 0 | -1 | 0 | 0 | 0 | 3 | 4 | 7 | 6 |
chill °C | -4 | -5 | -7 | -7 | -7 | -10 | -7 | -3 | -6 | -4 | -6 | -4 | -6 | -4 | 0 | 4 | 6 | 6 |
Freezing level m | 2800 | 2750 | 3250 | 3000 | 2800 | 2200 | 2700 | 2900 | 2400 | 2600 | 2600 | 2850 | 2650 | 2900 | 3650 | 3900 | 4050 | 4050 |
 | 6:58 | — | — | 6:58 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — |
 | — | 6:49 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:40 | — | — | 6:38 | — |
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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 Mon night. Freeze-thaw conditions (max 2°C on Mon night, min -2°C on Tue night). Winds decreasing (gales from the W on Mon night, light winds from the W by Wed night).
Fortress Mountain Weather (Days 3-6):
A moderate fall of snow, heaviest on Thu afternoon. Freeze-thaw conditions (max 8°C on Sat afternoon, min -1°C on Thu afternoon). Winds decreasing (fresh winds from the WSW on Thu night, 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.