– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 am Thu 17 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Thu 17 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Mild temperatures (max 9°C on Thu morning, min 5°C on Fri morning). Wind will be generally light. | Days 4–6 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 9°C on Sun morning, min -5°C on Tue morning). Winds decreasing (fresh winds from the WNW on Tue morning, calm by Tue night). | |||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | | | | | | |  | | |  | |  | |
clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | clear | clear | snow shwrs | some clouds | some clouds | |
Cloud base (m) | 8750 | 9300 | 8950 | 8700 | 9300 | 6300 | 2150 | 1600 | 2200 | |||||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 9 | 9 | 7 | 7 | 8 | 7 | 8 | 9 | 8 | 9 | 9 | 8 | 6 | 6 | 3 | -4 | -4 | 0 |
min °C | 7 | 9 | 6 | 5 | 8 | 6 | 6 | 9 | 7 | 7 | 9 | 6 | 5 | 5 | -2 | -5 | -4 | -4 |
chill °C | 5 | 8 | 6 | 5 | 8 | 6 | 5 | 9 | 6 | 6 | 8 | 3 | 2 | 2 | -10 | -14 | -11 | -11 |
Freezing level m | 3900 | 3850 | 3850 | 3700 | 3750 | 3850 | 3850 | 3900 | 4000 | 4000 | 4000 | 3900 | 3550 | 3400 | 2500 | 2100 | 2200 | 2950 |
 | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — |
 | — | 7:12 | — | — | 7:09 | — | — | 7:07 | — | — | 7:06 | — | — | 7:04 | — | — | 7:01 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: Mostly dry. Mild temperatures (max 9°C on Thu morning, min 5°C on Fri morning). Wind will be generally light.
Fortress Mountain Weather (Days 3-6):
A dusting of new snow. Freeze-thaw conditions (max 9°C on Sun morning, min -5°C on Tue morning). Winds decreasing (fresh winds from the WNW on Tue morning, calm by Tue 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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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.