– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 pm Thu 10 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Thu 10 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 4°C on Thu afternoon, min -1°C on Sat night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 7°C on Wed morning, min -1°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun night, calm by Tue afternoon). | ||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  |  | |  | |  | | | | | |  | |
clear | some clouds | some clouds | some clouds | some clouds | cloudy | light rain | some clouds | light snow | clear | rain shwrs | clear | clear | some clouds | some clouds | cloudy | clear | |
Cloud base (m) | 8700 | 1600 | 6700 | 3150 | 4550 | 2550 | 2550 | 1650 | 1650 | 1700 | 1800 | 2200 | 6100 | 3000 | |||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | 0.2 | — | — | — | 0.2 | — | — | — | — | — | — |
max °C | 4 | 2 | 1 | 3 | 2 | 2 | 2 | 1 | 0 | 0 | 2 | 3 | 4 | 3 | 3 | 4 | 4 |
min °C | 3 | 0 | 0 | 2 | 1 | 1 | 2 | -1 | 0 | 0 | -1 | 2 | 4 | 2 | 2 | 4 | 3 |
chill °C | -1 | -2 | 0 | 0 | -4 | -3 | -2 | -7 | -6 | -6 | -8 | 1 | 3 | -1 | -1 | 4 | 1 |
Freezing level m | 3000 | 2850 | 2750 | 3000 | 2800 | 2850 | 2900 | 2650 | 2700 | 2700 | 3350 | 3200 | 3100 | 3100 | 2950 | 3050 | 3250 |
 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — |
 | 7:27 | — | — | 7:24 | — | — | 7:22 | — | — | 7:21 | — | — | 7:17 | — | — | 7:15 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A dusting of new snow. Freeze-thaw conditions (max 4°C on Thu afternoon, min -1°C on Sat night). Wind will be generally light.
Fortress Mountain Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 7°C on Wed morning, min -1°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun night, calm 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 |
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Winthrop Airport (Washington) |  | ||||
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BUOY-46120 |
* 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.