– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 am Thu 08 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Thu 08 Oct Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA light covering of new snow mostly falling on Fri morning. Freeze-thaw conditions (max 9°C on Thu afternoon, min -7°C on Fri night). Winds decreasing (near gales from the WSW on Thu night, light winds from the N by Fri night). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Tue afternoon. Freeze-thaw conditions (max 4°C on Mon afternoon, min -7°C on Tue night). Winds increasing (calm on Mon morning, strong winds from the WSW by Tue afternoon). | |||||||||||||||||
Thursday 8 | Friday 9 | Saturday 10 | Sunday 11 | Monday 12 | Tuesday 13 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  | | | | | | | | | |  |  | |
clear | clear | clear | light snow | snow shwrs | some clouds | some clouds | light snow | clear | clear | clear | clear | clear | clear | some clouds | light snow | mod. snow | heavy snow | |
Cloud base (m) | 8950 | 8750 | 9250 | 1600 | 1600 | 1600 | 1600 | 2250 | 2000 | 2850 | 2650 | 1850 | 1600 | 1600 | ||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | 4 | 2 | — | — | 1 | — | — | — | — | — | — | — | 3 | 10 | 16 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 8 | 9 | 6 | -1 | -5 | -6 | -7 | -6 | -6 | -4 | -3 | 1 | 3 | 4 | 1 | 0 | -1 | -3 |
min °C | 7 | 8 | 3 | -2 | -6 | -7 | -7 | -6 | -7 | -6 | -4 | -3 | 2 | 3 | 1 | -1 | -2 | -7 |
chill °C | 4 | 4 | -4 | -10 | -15 | -10 | -10 | -10 | -12 | -10 | -7 | -7 | 0 | 0 | -3 | -8 | -10 | -16 |
Freezing level m | 3900 | 3850 | 3550 | 2350 | 1950 | 1200 | 1800 | 2000 | 1200 | 2150 | 2300 | 2650 | 3400 | 3300 | 3050 | 2500 | 2300 | 1650 |
 | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — |
 | — | 6:29 | — | — | 6:27 | — | — | 6:24 | — | — | 6:22 | — | — | 6:21 | — | — | 6:19 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A light covering of new snow mostly falling on Fri morning. Freeze-thaw conditions (max 9°C on Thu afternoon, min -7°C on Fri night). Winds decreasing (near gales from the WSW on Thu night, light winds from the N by Fri night).
Fortress Mountain Weather (Days 3-6):
A heavy fall of snow, heaviest during Tue afternoon. Freeze-thaw conditions (max 4°C on Mon afternoon, min -7°C on Tue night). Winds increasing (calm on Mon morning, strong winds from the WSW by Tue afternoon).
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 |
|---|---|---|---|---|---|
Winthrop Airport (Washington) |  | ||||
| |||||
SHIP4425 | |||||
SHIP10289 | |||||
SHIP14206 | |||||
SHIP8627 | |||||
SHIP7229 | |||||
SHIP3834 | |||||
SHIP13886 |
* 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.