– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 pm Wed 09 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Wed 09 Sep Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Freeze-thaw conditions (max 11°C on Wed afternoon, min 0°C on Thu night). Winds decreasing (near gales from the W on Wed night, calm by Fri morning). | Days 5–7 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 5°C on Mon afternoon, min -1°C on Sat night). Wind will be generally light. | ||||||||||||||||
Wed 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | |  | |  |  |  |  | | | | | | | | |
clear | clear | clear | clear | some clouds | clear | some clouds | cloudy | cloudy | light snow | some clouds | clear | some clouds | clear | some clouds | some clouds | clear | |
Cloud base (m) | 9350 | 9400 | 8450 | 1700 | 2650 | 3150 | 3200 | 2600 | 1800 | 1600 | 1850 | 2000 | 6850 | 3300 | |||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 11 | 9 | 4 | 4 | 2 | 0 | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 3 | 5 | 3 |
min °C | 10 | 5 | 4 | 4 | 0 | 0 | 1 | 0 | 0 | 1 | -1 | -1 | 0 | 1 | 1 | 4 | 3 |
chill °C | 6 | -2 | -3 | -1 | -4 | 0 | 1 | -4 | -4 | -2 | -7 | -7 | -4 | -1 | -2 | 3 | 1 |
Freezing level m | 4250 | 3900 | 3350 | 3150 | 2850 | 2700 | 2900 | 2700 | 2750 | 2750 | 2500 | 2600 | 2850 | 3050 | 3050 | 3150 | 3150 |
 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — |
 | 7:29 | — | — | 7:27 | — | — | 7:24 | — | — | 7:22 | — | — | 7:21 | — | — | 7:17 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: Mostly dry. Freeze-thaw conditions (max 11°C on Wed afternoon, min 0°C on Thu night). Winds decreasing (near gales from the W on Wed night, calm by Fri morning).
Fortress Mountain Weather (Days 3-6):
A dusting of new snow. Freeze-thaw conditions (max 5°C on Mon afternoon, min -1°C on Sat night). 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.