– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 am Sat 26 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Sat 26 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Freeze-thaw conditions (max 2°C on Mon night, min -5°C on Sat morning). Winds increasing (calm on Sat night, near gales from the W by Mon night). | Days 4–6 Weather SummaryMild at first with light rain (total 6mm) on Wed night followed by colder weather and light fall of snow, heaviest on Thu morning. Freeze-thaw conditions (max 3°C on Wed afternoon, min -6°C on Thu night). Winds decreasing (near gales from the WSW on Tue afternoon, light winds from the SSW by Wed night). | |||||||||||||||||
Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | | |  | |  | |  |  |  | |  | | | | |
clear | clear | some clouds | cloudy | clear | some clouds | some clouds | clear | cloudy | cloudy | light rain | light snow | light snow | light rain | light rain | light snow | light snow | light snow | |
Cloud base (m) | 1600 | 6950 | 5900 | 4800 | 2550 | 2500 | 1600 | 1650 | 1600 | 1600 | 1600 | 1600 | 1650 | 1600 | 1600 | |||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | — | — | 3 | 3 | 4 |
mm | — | — | — | — | — | — | — | — | — | — | 0.3 | — | — | 0.9 | 4 | — | — | — |
max °C | -3 | -1 | -1 | 0 | 1 | 0 | 1 | 1 | 2 | 1 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 0 |
min °C | -5 | -2 | -1 | -1 | 0 | -1 | 0 | 1 | 0 | 0 | 2 | 2 | 1 | 3 | 2 | 2 | 1 | -6 |
chill °C | -12 | -6 | -3 | -3 | -3 | -6 | -5 | -4 | -6 | -8 | -6 | -5 | -5 | -2 | -3 | -3 | -4 | -16 |
Freezing level m | 2100 | 2500 | 2400 | 2700 | 2750 | 2600 | 2800 | 2850 | 3150 | 2750 | 3050 | 3100 | 3050 | 3150 | 3100 | 3000 | 2800 | 2200 |
 | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: Mostly dry. Freeze-thaw conditions (max 2°C on Mon night, min -5°C on Sat morning). Winds increasing (calm on Sat night, near gales from the W by Mon night).
Fortress Mountain Weather (Days 3-6):
Mild at first with light rain (total 6mm) on Wed night followed by colder weather and light fall of snow, heaviest on Thu morning. Freeze-thaw conditions (max 3°C on Wed afternoon, min -6°C on Thu night). Winds decreasing (near gales from the WSW on Tue afternoon, light winds from the SSW by Wed 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-PBFW1 |
* 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.