– Lat/Long: 48.16° N 120.93° W
Fortress Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 am Wed 23 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Wed 23 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 Fri morning. Freeze-thaw conditions (max 5°C on Thu morning, min -7°C on Fri night). Winds decreasing (near gales from the SSW on Thu night, light winds from the SW by Fri afternoon). | Days 4–6 Weather SummaryMostly dry. Freeze-thaw conditions (max 2°C on Mon afternoon, min -5°C on Sat morning). Mainly fresh winds. | |||||||||||||||||
Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  |  |  | | | | | | | | | | |
some clouds | clear | some clouds | cloudy | cloudy | light snow | snow shwrs | light snow | mod. snow | some clouds | clear | some clouds | some clouds | clear | some clouds | some clouds | some clouds | some clouds | |
Cloud base (m) | 6100 | 2750 | 7100 | 5100 | 3500 | 1800 | 1950 | 1600 | 1600 | 1600 | 1800 | 7050 | 6750 | 5800 | 5900 | 3900 | ||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | 3 | 4 | 5 | 6 | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 1 | 2 | 3 | 5 | 4 | 4 | -2 | -3 | -4 | -3 | -2 | -1 | 1 | 1 | 0 | 0 | 2 | 1 |
min °C | 0 | 1 | 1 | 3 | 4 | -1 | -2 | -3 | -7 | -5 | -2 | -2 | -1 | 0 | -1 | -1 | 2 | 0 |
chill °C | -5 | -4 | -4 | -1 | 0 | -7 | -5 | -6 | -16 | -13 | -6 | -2 | -1 | -3 | -7 | -7 | -2 | -6 |
Freezing level m | 2850 | 2850 | 3300 | 3400 | 3300 | 2750 | 2350 | 2100 | 1700 | 2050 | 2400 | 2300 | 2750 | 2850 | 2400 | 2750 | 3000 | 2800 |
 | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — |
 | — | 7:00 | — | — | 6:58 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — |
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Fortress Mountain Weather (Days 0-3):
The weather forecast for Fortress Mountain is: A moderate fall of snow, heaviest on Fri morning. Freeze-thaw conditions (max 5°C on Thu morning, min -7°C on Fri night). Winds decreasing (near gales from the SSW on Thu night, light winds from the SW by Fri afternoon).
Fortress Mountain Weather (Days 3-6):
Mostly dry. Freeze-thaw conditions (max 2°C on Mon afternoon, min -5°C on Sat morning). Mainly fresh winds.
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 |
|---|---|---|---|---|---|
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.