– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Tue 20 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Tue 20 Oct Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Very mild (max 18°C on Wed afternoon, min 4°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryA dusting of snow giving way to moderate rain (total 11mm) heaviest on Sun morning. Freeze-thaw conditions (max 11°C on Sat afternoon, min -5°C on Sun night). Wind will be generally light. | |||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | | | | | | |  |  |  |  | | |
clear | clear | clear | some clouds | some clouds | clear | some clouds | some clouds | clear | some clouds | some clouds | cloudy | light rain | light snow | light rain | some clouds | |
Cloud base (m) | 8850 | 8550 | 8050 | 1650 | 1600 | 1950 | 1600 | 2750 | 1600 | 1600 | 1600 | 1800 | ||||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 3 | 4 | — |
max °C | 10 | 16 | 18 | 12 | 13 | 14 | 6 | 7 | 9 | 4 | 9 | 11 | 4 | 2 | 2 | 0 |
min °C | 9 | 10 | 16 | 10 | 9 | 12 | 4 | 5 | 8 | 3 | 4 | 8 | 3 | 2 | 2 | -5 |
chill °C | 9 | 10 | 16 | 10 | 9 | 11 | 2 | 3 | 7 | 2 | 4 | 7 | 2 | 0 | 0 | -5 |
Freezing level m | 3200 | 3050 | 3000 | 3000 | 2950 | 2800 | 1850 | 2500 | 2650 | 1750 | 2450 | 2300 | 1650 | 1300 | 1300 | 0 |
 | — | 7:31 | — | — | 7:33 | — | — | 7:33 | — | — | 7:35 | — | — | 7:37 | — | — |
 | — | — | 6:04 | — | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:57 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: Mostly dry. Very mild (max 18°C on Wed afternoon, min 4°C on Thu night). Wind will be generally light.
Fortress Mountain Weather (Days 3-6):
A dusting of snow giving way to moderate rain (total 11mm) heaviest on Sun morning. Freeze-thaw conditions (max 11°C on Sat afternoon, min -5°C on Sun night). Wind will be generally light.
This table gives the weather forecast for Fortress Mountain at the specific elevation of 1000 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.