– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 9 am Tue 10 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Tue 10 Nov Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA moderate fall of snow, heaviest on Tue morning. Freeze-thaw conditions (max 1°C on Wed morning, min -2°C on Tue morning). Winds decreasing (near gales from the WSW on Tue afternoon, light winds from the S by Wed night). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Sun morning. Temperatures will be below freezing (max -1°C on Fri morning, min -6°C on Sat night). Winds decreasing (gales from the SSE on Fri afternoon, light winds from the SSW by Sat morning). | |||||||||||||||||
Tuesday 10 | Wednesday 11 | Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | | | |  |  |  | | | | |  | |
heavy snow | mod. snow | light snow | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | some clouds | snow shwrs | light snow | light snow | snow shwrs | mod. snow | mod. snow | mod. snow | |
Cloud base (m) | 1700 | 1600 | 1650 | 2700 | 1800 | 1700 | 1600 | 2350 | 2550 | 1600 | 1600 | 1600 | 2250 | 1600 | 1600 | |||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | 11 | 6 | 2 | — | — | — | — | — | — | — | — | 1 | 3 | 2 | 1 | 6 | 9 | 8 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | -1 | -1 | -2 | -3 | -4 | -4 | -3 | -3 | -4 |
min °C | -2 | -1 | -1 | 0 | 1 | 0 | 0 | 0 | 0 | -1 | -2 | -3 | -4 | -5 | -6 | -3 | -4 | -6 |
chill °C | -10 | -9 | -9 | -6 | -5 | -5 | -6 | -6 | -6 | -10 | -12 | -11 | -7 | -9 | -11 | -10 | -10 | -11 |
Freezing level m | 1850 | 2400 | 2550 | 2800 | 3100 | 3100 | 2750 | 2600 | 2800 | 2550 | 2400 | 2150 | 2050 | 1900 | 1650 | 1850 | 1700 | 1700 |
 | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — |
 | — | 4:30 | — | — | 4:30 | — | — | 4:28 | — | — | 4:27 | — | — | 4:25 | — | — | 4:24 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A moderate fall of snow, heaviest on Tue morning. Freeze-thaw conditions (max 1°C on Wed morning, min -2°C on Tue morning). Winds decreasing (near gales from the WSW on Tue afternoon, light winds from the S by Wed night).
Fortress Mountain Weather (Days 3-6):
A heavy fall of snow, heaviest during Sun morning. Temperatures will be below freezing (max -1°C on Fri morning, min -6°C on Sat night). Winds decreasing (gales from the SSE on Fri afternoon, light winds from the SSW by Sat 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.