– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 am Mon 05 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Mon 05 Oct Local Time
Updates in:
Update imminent hr min s
3 Fortress Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Mild temperatures (max 9°C on Wed morning, min 6°C on Mon morning). Winds decreasing (fresh winds from the W on Mon afternoon, light winds from the NW by Wed night). | Days 4–6 Weather SummaryA light covering of new snow mostly falling on Sat night. Freeze-thaw conditions (max 10°C on Thu afternoon, min -8°C on Sat night). Winds decreasing (near gales from the W on Fri morning, calm by Sat morning). | |||||||||||||||||
Monday 5 | Tuesday 6 | Wednesday 7 | Thursday 8 | Friday 9 | Saturday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | |  | | | |  | | | | | |  |  |  | |
clear | clear | some clouds | clear | clear | clear | clear | clear | clear | some clouds | clear | clear | clear | some clouds | clear | cloudy | light snow | snow shwrs | |
Cloud base (m) | 7250 | 8200 | 9450 | 8650 | 8800 | 9200 | 9350 | 8750 | 7800 | 9300 | 8450 | 2200 | 1600 | 1600 | 1650 | 2050 | ||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 6 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 7 | 6 | 6 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 10 | 8 | 4 | 2 | -3 | -4 | -5 | -6 |
min °C | 6 | 6 | 6 | 6 | 8 | 7 | 7 | 9 | 8 | 8 | 10 | 5 | 3 | -1 | -5 | -5 | -5 | -8 |
chill °C | 1 | 1 | 1 | 2 | 5 | 4 | 4 | 7 | 5 | 6 | 8 | -1 | -4 | -9 | -11 | -9 | -5 | -17 |
Freezing level m | 3750 | 3750 | 4000 | 4000 | 4000 | 4100 | 4000 | 4050 | 4250 | 4100 | 4100 | 3950 | 3200 | 2500 | 1850 | 2000 | 1950 | 1250 |
 | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — |
 | — | 6:35 | — | — | 6:32 | — | — | 6:30 | — | — | 6:29 | — | — | 6:27 | — | — | 6:24 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: Mostly dry. Mild temperatures (max 9°C on Wed morning, min 6°C on Mon morning). Winds decreasing (fresh winds from the W on Mon afternoon, light winds from the NW by Wed night).
Fortress Mountain Weather (Days 3-6):
A light covering of new snow mostly falling on Sat night. Freeze-thaw conditions (max 10°C on Thu afternoon, min -8°C on Sat night). Winds decreasing (near gales from the W on Fri morning, calm by Sat morning).
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-PBFW1 | |||||
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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.