– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Thu 29 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Thu 29 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. Temperatures will be below freezing (max -5°C on Sun morning, min -9°C on Thu night). Winds decreasing (fresh winds from the SSE on Fri afternoon, calm by Sat night). | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 2°C on Mon morning, min -4°C on Sun night). Winds decreasing (fresh winds from the SW on Mon night, calm by Tue night). | |||||||||||||||
Friday 30 | Saturday 31 | Sunday 1 | Monday 2 | Tuesday 3 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | | |  | | |  | | | | |
some clouds | cloudy | light snow | snow shwrs | clear | some clouds | some clouds | clear | clear | clear | some clouds | cloudy | cloudy | some clouds | clear | clear | |
Cloud base (m) | 2400 | 2250 | 1600 | 1650 | 1800 | 1650 | 2250 | 2350 | 1800 | 1600 | 5350 | 2650 | 2650 | 5450 | 8700 | |
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -9 | -7 | -7 | -8 | -6 | -6 | -6 | -5 | -5 | 0 | 2 | 2 | -1 | 0 | 0 | 0 |
min °C | -9 | -8 | -7 | -8 | -8 | -6 | -7 | -6 | -5 | -4 | 1 | 1 | -1 | -1 | 0 | -1 |
chill °C | -15 | -15 | -16 | -13 | -14 | -12 | -12 | -10 | -12 | -11 | -1 | -3 | -5 | -5 | -3 | -3 |
Freezing level m | 750 | 1400 | 1650 | 1050 | 1650 | 1750 | 1200 | 1900 | 1800 | 1250 | 3250 | 3100 | 2150 | 2600 | 2650 | 2550 |
 | — | 7:45 | — | — | 7:47 | — | — | 6:48 | — | — | 7:50 | — | — | 7:50 | — | — |
 | — | — | 5:47 | — | — | 5:46 | — | — | 4:45 | — | — | 5:43 | — | — | 5:42 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A dusting of new snow. Temperatures will be below freezing (max -5°C on Sun morning, min -9°C on Thu night). Winds decreasing (fresh winds from the SSE on Fri afternoon, calm by Sat night).
Fortress Mountain Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 2°C on Mon morning, min -4°C on Sun night). Winds decreasing (fresh winds from the SW on Mon night, calm by Tue 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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* 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.