– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 am Tue 29 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Tue 29 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMild with light rain (total 3mm) on Tue morning Becoming colder with a light covering of snow, mostly falling on Tue morning. Freeze-thaw conditions (max 3°C on Thu afternoon, min -2°C on Tue night). Winds decreasing (near gales from the W on Tue morning, light winds from the W by Thu morning). | Days 4–6 Weather SummaryMostly dry. Very mild (max 10°C on Sun afternoon, min 1°C on Fri morning). Wind will be generally light. | |||||||||||||||||
Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | |  |  | |  |  | |  | | | | | | | |
light snow | light snow | snow shwrs | clear | clear | some clouds | cloudy | cloudy | rain shwrs | rain shwrs | rain shwrs | clear | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 1600 | 1600 | 1700 | 8950 | 8850 | 3000 | 2450 | 1750 | 2000 | 2250 | 9400 | 9300 | ||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | 2 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 2 | — | — | — | — | — | — | — | 0.6 | 0.1 | 0.3 | — | — | — | — | — | — | — |
max °C | 2 | 2 | 1 | 0 | 2 | 1 | 2 | 3 | 3 | 2 | 4 | 5 | 7 | 8 | 7 | 9 | 10 | 9 |
min °C | 2 | 1 | -2 | -1 | 2 | 1 | 1 | 2 | 2 | 1 | 4 | 4 | 5 | 8 | 7 | 7 | 10 | 8 |
chill °C | -6 | -7 | -10 | -7 | -2 | -3 | -2 | -3 | -5 | -3 | -1 | 1 | 4 | 7 | 6 | 5 | 8 | 5 |
Freezing level m | 3100 | 2950 | 2250 | 2750 | 3000 | 3000 | 2900 | 3250 | 3100 | 3000 | 3350 | 3750 | 3900 | 3900 | 4100 | 4150 | 4100 | 4000 |
 | 6:58 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — |
 | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:40 | — | — | 6:38 | — | — | 6:37 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: Mild with light rain (total 3mm) on Tue morning Becoming colder with a light covering of snow, mostly falling on Tue morning. Freeze-thaw conditions (max 3°C on Thu afternoon, min -2°C on Tue night). Winds decreasing (near gales from the W on Tue morning, light winds from the W by Thu morning).
Fortress Mountain Weather (Days 3-6):
Mostly dry. Very mild (max 10°C on Sun afternoon, min 1°C on Fri morning). Wind will be generally light.
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.