– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 am Sun 13 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Sun 13 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 Sun morning. Freeze-thaw conditions (max 4°C on Mon afternoon, min -2°C on Sun morning). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Very mild (max 10°C on Thu morning, min 3°C on Wed morning). Wind will be generally light. | |||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  | |  |  | | | | | | | | | |
mod. snow | light snow | light rain | rain shwrs | some clouds | some clouds | cloudy | some clouds | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | |
Cloud base (m) | 1600 | 1600 | 1600 | 1700 | 1950 | 4650 | 2650 | 1850 | 8550 | 8900 | ||||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | 8 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | 0.1 | 0.1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -2 | -1 | 2 | 3 | 4 | 2 | 0 | 0 | 3 | 6 | 7 | 8 | 10 | 10 | 8 | 8 | 8 | 7 |
min °C | -2 | -2 | -1 | 2 | 3 | 0 | -1 | 0 | 0 | 3 | 7 | 7 | 8 | 10 | 6 | 6 | 8 | 6 |
chill °C | -8 | -6 | -7 | 2 | 0 | -2 | -1 | -2 | -3 | 0 | 6 | 6 | 7 | 9 | 6 | 6 | 8 | 5 |
Freezing level m | 2350 | 2400 | 2900 | 3350 | 3200 | 2900 | 2650 | 2650 | 3200 | 3650 | 3650 | 4000 | 3950 | 3950 | 3900 | 3850 | 3850 | 3900 |
 | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — |
 | — | 7:21 | — | — | 7:17 | — | — | 7:15 | — | — | 7:14 | — | — | 7:12 | — | — | 7:09 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A moderate fall of snow, heaviest on Sun morning. Freeze-thaw conditions (max 4°C on Mon afternoon, min -2°C on Sun morning). Wind will be generally light.
Fortress Mountain Weather (Days 3-6):
Mostly dry. Very mild (max 10°C on Thu morning, min 3°C on Wed 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.