– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 9 am Wed 04 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Wed 04 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 Wed night. Temperatures will be below freezing (max 0°C on Wed morning, min -7°C on Wed night). Winds increasing (light winds from the SW on Wed morning, strong winds from the WSW by Thu night). | Days 4–6 Weather SummaryA heavy fall of snow, heaviest during Sat night. Freeze-thaw conditions (max 1°C on Sat morning, min -9°C on Sun morning). Winds decreasing (severe gales from the SW on Sat night, light winds from the N by Sun night). | |||||||||||||||||
Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | |  | | | |  | | | | | | |
clear | cloudy | mod. snow | some clouds | clear | some clouds | light snow | light snow | snow shwrs | some clouds | some clouds | snow shwrs | heavy snow | some clouds | some clouds | cloudy | clear | some clouds | |
Cloud base (m) | 9250 | 2900 | 1600 | 1600 | 1650 | 1650 | 2100 | 1600 | 1950 | 1950 | 2150 | 3100 | 1600 | 1600 | 1600 | 1600 | ||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | 6 | — | — | — | 2 | 2 | 1 | — | — | 9 | 11 | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 0 | -2 | -4 | -5 | -5 | -2 | -1 | -1 | 0 | 1 | 1 | 0 | -7 | -7 | -3 | -3 | -3 | -2 |
min °C | 0 | -3 | -7 | -7 | -5 | -3 | -3 | -1 | -1 | 0 | 1 | -8 | -9 | -9 | -5 | -3 | -4 | -3 |
chill °C | -3 | -9 | -15 | -15 | -11 | -8 | -12 | -9 | -8 | -6 | -5 | -21 | -20 | -20 | -9 | -7 | -9 | -9 |
Freezing level m | 2750 | 2350 | 1650 | 1650 | 1800 | 1350 | 1700 | 2550 | 2450 | 2700 | 3100 | 1750 | 1500 | 1150 | 500 | 1550 | 1550 | 1050 |
 | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — |
 | — | 4:39 | — | — | 4:37 | — | — | 4:37 | — | — | 4:35 | — | — | 4:34 | — | — | 4:31 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A moderate fall of snow, heaviest on Wed night. Temperatures will be below freezing (max 0°C on Wed morning, min -7°C on Wed night). Winds increasing (light winds from the SW on Wed morning, strong winds from the WSW by Thu night).
Fortress Mountain Weather (Days 3-6):
A heavy fall of snow, heaviest during Sat night. Freeze-thaw conditions (max 1°C on Sat morning, min -9°C on Sun morning). Winds decreasing (severe gales from the SW on Sat night, light winds from the N by Sun 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.