– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Sun 04 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sun 04 Oct Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Mild temperatures (max 9°C on Wed afternoon, min 5°C on Mon night). Winds decreasing (fresh winds from the W on Mon afternoon, light winds from the WNW by Tue night). | Days 5–7 Weather SummaryMostly dry. Freeze-thaw conditions (max 10°C on Thu morning, min -4°C on Sat morning). Winds decreasing (near gales from the WNW on Fri afternoon, light winds from the NE by Sat morning). | |||||||||||||||
Monday 5 | Tuesday 6 | Wednesday 7 | Thursday 8 | Friday 9 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | |  | | | | | | | | | | | | |
clear | clear | clear | clear | some clouds | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 8850 | 8150 | 1600 | 7250 | 5850 | 8500 | 8400 | 9400 | 8400 | 8550 | 8550 | 9000 | 9450 | 1600 | ||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 8 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 8 | 6 | 4 | 2 |
min °C | 7 | 6 | 6 | 5 | 6 | 8 | 7 | 7 | 9 | 8 | 8 | 10 | 7 | 5 | 4 | -3 |
chill °C | 3 | 1 | 1 | 0 | 2 | 5 | 4 | 4 | 6 | 5 | 5 | 8 | 2 | -1 | -3 | -10 |
Freezing level m | 4000 | 3750 | 3750 | 3950 | 4000 | 4000 | 4000 | 4000 | 4150 | 4250 | 4200 | 4150 | 4100 | 3600 | 3250 | 2400 |
 | — | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — |
 | — | — | 6:35 | — | — | 6:32 | — | — | 6:30 | — | — | 6:29 | — | — | 6:27 | — |
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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 Wed afternoon, min 5°C on Mon night). Winds decreasing (fresh winds from the W on Mon afternoon, light winds from the WNW by Tue night).
Fortress Mountain Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 10°C on Thu morning, min -4°C on Sat morning). Winds decreasing (near gales from the WNW on Fri afternoon, light winds from the NE 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.