– Lat/Long: 47.64° N 120.91° W
Grindstone Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Sun 20 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sun 20 Sep Local Time
Updates in:
Update imminent hr min s
3 Grindstone Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Very mild (max 12°C on Mon afternoon, min 3°C on Tue night). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 3mm) at first, then becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 5°C on Wed night, min -3°C on Thu night). Winds decreasing (near gales from the WNW on Fri morning, calm by Fri night). | |||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | |  | | | |  |  |  | | | |
clear | clear | some clouds | some clouds | clear | clear | some clouds | cloudy | some clouds | some clouds | cloudy | light rain | light snow | light snow | some clouds | some clouds | |
Cloud base (m) | 6350 | 900 | 900 | 900 | 6450 | 8300 | 4400 | 2950 | 2450 | 850 | 900 | 1550 | 5700 | |||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1.1 | 1.9 | — | — | — |
max °C | 11 | 11 | 12 | 8 | 6 | 7 | 4 | 4 | 6 | 5 | 5 | 5 | 3 | -3 | -1 | 0 |
min °C | 10 | 10 | 11 | 6 | 5 | 6 | 3 | 3 | 5 | 4 | 4 | 3 | -3 | -3 | -1 | -1 |
chill °C | 8 | 8 | 9 | 2 | 1 | 2 | -2 | -2 | 1 | 0 | -1 | -2 | -11 | -12 | -9 | -7 |
Freezing level m | 4000 | 3750 | 3750 | 3800 | 3500 | 3150 | 3000 | 3000 | 3050 | 3300 | 2950 | 2800 | 2300 | 1850 | 2150 | 2200 |
 | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | — | 7:04 | — | — | 7:01 | — | — | 7:00 | — | — | 6:57 | — | — | 6:54 | — |
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Grindstone Mountain Weather (Days 0-3):
The weather forecast for Grindstone Mountain is: Mostly dry. Very mild (max 12°C on Mon afternoon, min 3°C on Tue night). Wind will be generally light.
Grindstone Mountain Weather (Days 3-6):
Light rain (total 3mm) at first, then becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 5°C on Wed night, min -3°C on Thu night). Winds decreasing (near gales from the WNW on Fri morning, calm by Fri 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 |
|---|---|---|---|---|---|
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Winthrop Airport (Washington) |  | ||||
SHIP4442 |
* 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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