– Lat/Long: 47.64° N 120.91° W
Grindstone Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 pm Fri 25 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Fri 25 Sep Local Time
Updates in:
Update imminent hr min s
3 Grindstone Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Fri night. Freeze-thaw conditions (max 4°C on Sun afternoon, min -4°C on Fri night). Winds decreasing (near gales from the W on Fri afternoon, calm by Sat night). | Days 5–7 Weather SummaryLight rain (total 3mm) at first, then becoming colder with a dusting of snow on Tue night. Freeze-thaw conditions (max 5°C on Mon afternoon, min -4°C on Thu morning). Winds decreasing (near gales from the W on Tue afternoon, light winds from the WNW by Wed night). | ||||||||||||||||
Fri 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | | | | | |  | | | | |  | |
light snow | snow shwrs | clear | clear | some clouds | some clouds | clear | some clouds | some clouds | clear | some clouds | light rain | light rain | snow shwrs | clear | some clouds | clear | |
Cloud base (m) | 1500 | 950 | 1550 | 6950 | 6300 | 7900 | 3250 | 2050 | 850 | 900 | 900 | 2350 | 1500 | ||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 0.1 | 3 | — | — | — | — |
max °C | 0 | -3 | -1 | 1 | 1 | 3 | 4 | 3 | 4 | 5 | 4 | 4 | 3 | 2 | 1 | 2 | 0 |
min °C | -1 | -4 | -3 | 1 | 1 | 1 | 4 | 2 | 2 | 5 | 4 | 3 | 2 | 1 | 0 | 2 | -3 |
chill °C | -10 | -12 | -10 | -3 | 0 | 1 | 2 | -2 | -3 | 1 | -1 | -4 | -5 | -6 | -7 | -4 | -9 |
Freezing level m | 2050 | 1650 | 2100 | 2500 | 2600 | 2800 | 2800 | 2850 | 3000 | 3050 | 3450 | 3050 | 2750 | 2700 | 2600 | 2550 | 1800 |
 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — |
 | 6:54 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — | — | 6:46 | — | — | 6:45 | — |
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Grindstone Mountain Weather (Days 0-3):
The weather forecast for Grindstone Mountain is: A light covering of new snow mostly falling on Fri night. Freeze-thaw conditions (max 4°C on Sun afternoon, min -4°C on Fri night). Winds decreasing (near gales from the W on Fri afternoon, calm by Sat night).
Grindstone Mountain Weather (Days 3-6):
Light rain (total 3mm) at first, then becoming colder with a dusting of snow on Tue night. Freeze-thaw conditions (max 5°C on Mon afternoon, min -4°C on Thu morning). Winds decreasing (near gales from the W on Tue afternoon, light winds from the WNW by Wed night).
This table gives the weather forecast for Grindstone Mountain at the specific elevation of 2296 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Grindstone 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) | | ||||
Seattl / oeing Airport |  | ||||
BUOY-EBSW1 |
* 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.
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