– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 am Sat 12 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Sat 12 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryA moderate fall of snow, heaviest on Sat night. Freeze-thaw conditions (max 4°C on Sat afternoon, min -1°C on Sat night). Mainly fresh winds. | Days 4–6 Weather SummaryMostly dry. Very mild (max 11°C on Thu afternoon, min 1°C on Tue morning). Wind will be generally light. | |||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | | | |  |  |  | | | | | | |
cloudy | some clouds | light snow | light snow | light snow | some clouds | some clouds | cloudy | some clouds | cloudy | rain shwrs | clear | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 4300 | 5650 | 2050 | 1600 | 1600 | 1700 | 1650 | 1900 | 8650 | 2900 | 9100 | |||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | 4 | 4 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | 0.1 | — | — | — | — | — | — | — |
max °C | 3 | 4 | 3 | -1 | -1 | 3 | 3 | 4 | 2 | 2 | 3 | 4 | 7 | 8 | 8 | 10 | 11 | 10 |
min °C | 2 | 4 | -1 | -1 | -1 | -1 | 3 | 3 | 1 | 1 | 2 | 2 | 5 | 7 | 8 | 8 | 10 | 9 |
chill °C | -2 | 0 | -6 | -6 | -6 | -8 | 3 | 0 | -1 | 1 | 2 | -1 | 5 | 7 | 8 | 8 | 10 | 9 |
Freezing level m | 2950 | 3200 | 2600 | 2450 | 2450 | 3100 | 3350 | 3200 | 3050 | 2900 | 3000 | 3400 | 3800 | 3850 | 4250 | 4250 | 4200 | 4400 |
 | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — |
 | — | 7:22 | — | — | 7:21 | — | — | 7:17 | — | — | 7:15 | — | — | 7:14 | — | — | 7:12 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A moderate fall of snow, heaviest on Sat night. Freeze-thaw conditions (max 4°C on Sat afternoon, min -1°C on Sat night). Mainly fresh winds.
Fortress Mountain Weather (Days 3-6):
Mostly dry. Very mild (max 11°C on Thu afternoon, min 1°C on Tue 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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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.