– Lat/Long: 47.64° N 120.91° W
Grindstone Mountain
Weather Forecast, United StatesIssued: 3 pm Mon 15 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 pm Mon 15 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Mon 15 Dec Local Time
Updates in:
Update imminent hr min s
3 Grindstone Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 117mm), heaviest during Tue night. Later becoming colder with a dusting of snow on Wed night. Very mild (max 10°C on Mon afternoon, min 2°C on Tue night). Wind will be generally light. | Days 5–7 Weather SummaryMild with moderate rain (total 12mm) on Thu afternoon, Becoming colder with a light covering of snow, mostly falling on Sun morning. Freeze-thaw conditions (max 6°C on Thu afternoon, min -3°C on Sat afternoon). Wind will be generally light. | ||||||||||||||||
Mon 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  |  |  | | | |  |  |  | | | | |
light rain | mod. rain | heavy rain | heavy rain | heavy rain | mod. rain | rain shwrs | snow shwrs | heavy rain | mod. rain | snow shwrs | some clouds | light snow | some clouds | light rain | some clouds | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | 1 | — | — | 2 | — | 2 | — | — | — | — | |
4 | 5 | 19 | 17 | 49 | 6 | 5 | — | 12 | 8 | 3 | — | — | — | 0.3 | — | — | |
max°C | 10 | 6 | 6 | 7 | 7 | 3 | 3 | 2 | 2 | 6 | 3 | 2 | 1 | 0 | 3 | 1 | -3 |
min°C | 7 | 4 | 5 | 6 | 2 | 2 | 2 | 2 | 2 | 5 | -2 | 1 | 0 | -1 | 2 | -3 | -3 |
4 | 2 | 4 | 5 | -4 | -2 | -1 | 0 | 0 | 2 | -5 | -2 | -2 | -4 | 0 | -3 | -3 | |
2050 | 1400 | 1300 | 1700 | 1700 | 850 | 950 | 800 | 850 | 1450 | 700 | 600 | 700 | 350 | 850 | 650 | 0 | |
Cloud base (m) | 850 | 900 | 850 | 850 | 1350 | 1450 | 900 | 900 | 850 | 1350 | 1400 | 1400 | 1400 | 900 | 900 | 900 | 900 |
 | — | — | 7:46 | — | — | 7:46 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — |
 | 4:12 | — | — | 4:12 | — | — | 4:12 | — | — | 4:13 | — | — | 4:13 | — | — | 4:14 | — |
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Grindstone Mountain Weather (Days 0-3):
The weather forecast for Grindstone Mountain is: Heavy rain (total 117mm), heaviest during Tue night. Later becoming colder with a dusting of snow on Wed night. Very mild (max 10°C on Mon afternoon, min 2°C on Tue night). Wind will be generally light.
Grindstone Mountain Weather (Days 3-6):
Mild with moderate rain (total 12mm) on Thu afternoon, Becoming colder with a light covering of snow, mostly falling on Sun morning. Freeze-thaw conditions (max 6°C on Thu afternoon, min -3°C on Sat afternoon). Wind will be generally light.
This table gives the weather forecast for Grindstone Mountain at the specific elevation of 500 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) |  |
* 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.