– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 3 pm Wed 11 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Wed 11 Nov 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 Fri afternoon. Freeze-thaw conditions (max 1°C on Wed afternoon, min -6°C on Fri night). Winds decreasing (near gales from the SSE on Thu night, light winds from the S by Fri night). | Days 5–7 Weather SummaryA heavy fall of snow, heaviest during Sun morning. Temperatures will be below freezing (max -3°C on Sat night, min -9°C on Sun night). Winds decreasing (fresh winds from the SSW on Sat night, calm by Tue morning). | ||||||||||||||||
Wed 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | |  |  |  | | |  | | |  |  | |  | |
cloudy | cloudy | cloudy | cloudy | cloudy | light snow | mod. snow | snow shwrs | light snow | cloudy | mod. snow | mod. snow | light snow | light snow | some clouds | some clouds | some clouds | |
Cloud base (m) | 1600 | 1600 | 2750 | 1800 | 1600 | 1650 | 1600 | 1600 | 1600 | 1600 | 1650 | 1600 | 1600 | 2000 | |||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | 1 | 7 | 1 | 1 | — | 9 | 7 | 5 | 2 | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 1 | 1 | 0 | 1 | 1 | -3 | -3 | -5 | -6 | -5 | -3 | -4 | -6 | -7 | -9 | -8 | -8 |
min °C | 1 | 0 | 0 | 0 | -2 | -3 | -4 | -6 | -6 | -6 | -4 | -5 | -7 | -9 | -9 | -9 | -9 |
chill °C | -6 | -6 | -6 | -6 | -12 | -12 | -13 | -10 | -13 | -13 | -11 | -11 | -14 | -18 | -17 | -15 | -14 |
Freezing level m | 3100 | 3100 | 2650 | 2750 | 2950 | 2200 | 2050 | 1800 | 1750 | 1750 | 1800 | 1700 | 1600 | 1200 | 1300 | 1350 | 800 |
 | — | — | 7:05 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — |
 | 4:30 | — | — | 4:28 | — | — | 4:27 | — | — | 4:25 | — | — | 4:24 | — | — | 4:23 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A moderate fall of snow, heaviest on Fri afternoon. Freeze-thaw conditions (max 1°C on Wed afternoon, min -6°C on Fri night). Winds decreasing (near gales from the SSE on Thu night, light winds from the S by Fri night).
Fortress Mountain Weather (Days 3-6):
A heavy fall of snow, heaviest during Sun morning. Temperatures will be below freezing (max -3°C on Sat night, min -9°C on Sun night). Winds decreasing (fresh winds from the SSW on Sat night, calm by Tue morning).
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.