– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 9 am Thu 12 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Thu 12 Nov Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA heavy fall of snow, heaviest during Sat night. Freeze-thaw conditions (max 1°C on Thu morning, min -7°C on Fri night). Winds decreasing (gales from the SSE on Fri morning, light winds from the SSW by Fri night). | Days 4–6 Weather SummaryA moderate fall of snow, heaviest on Sun afternoon. Temperatures will be below freezing (max -5°C on Sun morning, min -10°C on Tue night). Winds decreasing (fresh winds from the SW on Sun night, calm by Mon night). | |||||||||||||||||
Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  | | | | |  |  |  | |  |  | |  | |
cloudy | cloudy | cloudy | light snow | light snow | mod. snow | cloudy | light snow | mod. snow | light snow | mod. snow | snow shwrs | some clouds | some clouds | some clouds | clear | clear | light snow | |
Cloud base (m) | 6050 | 1600 | 2650 | 1900 | 1600 | 1650 | 1600 | 1600 | 1600 | 1600 | 1600 | 1650 | 1600 | 1850 | 1650 | 1600 | 1600 | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | 1 | 5 | 8 | — | 1 | 10 | 5 | 6 | 3 | — | — | — | — | — | 3 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 1 | 1 | 1 | -2 | -3 | -4 | -6 | -5 | -3 | -5 | -6 | -8 | -9 | -9 | -8 | -7 | -7 | -7 |
min °C | 0 | 1 | -2 | -3 | -3 | -7 | -6 | -6 | -4 | -5 | -7 | -9 | -9 | -9 | -9 | -8 | -8 | -10 |
chill °C | -5 | -4 | -12 | -13 | -13 | -13 | -12 | -13 | -11 | -12 | -14 | -18 | -18 | -17 | -12 | -12 | -16 | -19 |
Freezing level m | 2800 | 2900 | 2650 | 2300 | 2000 | 1700 | 1700 | 1750 | 1750 | 1600 | 1550 | 1300 | 1400 | 1250 | 600 | 1300 | 1400 | 900 |
 | 7:05 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:13 | — | — |
 | — | 4:28 | — | — | 4:27 | — | — | 4:25 | — | — | 4:24 | — | — | 4:23 | — | — | 4:22 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A heavy fall of snow, heaviest during Sat night. Freeze-thaw conditions (max 1°C on Thu morning, min -7°C on Fri night). Winds decreasing (gales from the SSE on Fri morning, light winds from the SSW by Fri night).
Fortress Mountain Weather (Days 3-6):
A moderate fall of snow, heaviest on Sun afternoon. Temperatures will be below freezing (max -5°C on Sun morning, min -10°C on Tue night). Winds decreasing (fresh winds from the SW on Sun night, calm by Mon 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.