– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Fri 16 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Fri 16 Oct Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 5°C on Fri night, min -4°C on Sat morning). Winds decreasing (near gales from the WSW on Fri night, light winds from the W by Sat night). | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 2°C on Wed morning, min -3°C on Mon night). Wind will be generally light. | |||||||||||||||
Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | |  |  |  | | | | | | | | |
some clouds | light snow | clear | clear | clear | clear | cloudy | some clouds | cloudy | some clouds | some clouds | clear | clear | clear | clear | clear | |
Cloud base (m) | 6650 | 1600 | 1700 | 1750 | 8500 | 5350 | 3450 | 3450 | 6700 | 3300 | 8650 | |||||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 5 | -1 | -3 | -2 | 0 | 1 | 0 | -1 | -1 | -2 | -1 | 0 | 1 | 2 | 2 | 1 |
min °C | 1 | -4 | -4 | -4 | -2 | 1 | -1 | -2 | -2 | -3 | -2 | 0 | 0 | 1 | 2 | 0 |
chill °C | -7 | -13 | -13 | -11 | -5 | -2 | -4 | -6 | -5 | -3 | -5 | -2 | 0 | -2 | -1 | -5 |
Freezing level m | 3000 | 2050 | 2150 | 1450 | 2600 | 2850 | 2400 | 2500 | 2400 | 1950 | 2550 | 2650 | 2800 | 3000 | 2850 | 2650 |
 | — | 7:24 | — | — | 7:26 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — |
 | — | — | 6:10 | — | — | 6:08 | — | — | 6:07 | — | — | 6:06 | — | — | 6:04 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A dusting of new snow. Freeze-thaw conditions (max 5°C on Fri night, min -4°C on Sat morning). Winds decreasing (near gales from the WSW on Fri night, light winds from the W by Sat night).
Fortress Mountain Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 2°C on Wed morning, min -3°C on Mon night). Wind will be generally light.
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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SHIP8982 |
* 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.