– Lat/Long: 47.64° N 120.91° W
Grindstone Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 pm Sun 27 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Sun 27 Sep Local Time
Updates in:
Update imminent hr min s
3 Grindstone Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 8mm), mostly falling on Tue afternoon. Very mild (max 11°C on Mon afternoon, min 3°C on Tue night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 15°C on Sat afternoon, min 8°C on Wed night). Wind will be generally light. | |||||||||||||||
Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | | |  | |  | |  | | | | | |
clear | some clouds | some clouds | rain shwrs | light rain | light rain | rain shwrs | clear | some clouds | some clouds | some clouds | cloudy | some clouds | clear | some clouds | clear | |
Cloud base (m) | 8250 | 6550 | 1550 | 850 | 850 | 900 | 9250 | 3350 | 3050 | 2800 | 2400 | 2700 | 9200 | |||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | 0.8 | 3 | 4 | 1.4 | — | — | — | — | — | — | — | — | — |
max °C | 8 | 9 | 11 | 6 | 6 | 7 | 7 | 6 | 11 | 8 | 11 | 14 | 10 | 11 | 13 | 9 |
min °C | 6 | 6 | 10 | 5 | 5 | 7 | 3 | 3 | 10 | 8 | 8 | 13 | 8 | 8 | 12 | 8 |
chill °C | 4 | 4 | 8 | 2 | 2 | 5 | 0 | 0 | 10 | 8 | 8 | 12 | 6 | 6 | 11 | 7 |
Freezing level m | 2900 | 3000 | 3000 | 3350 | 3050 | 3000 | 2950 | 3300 | 3300 | 3400 | 3450 | 3350 | 3150 | 3250 | 3650 | 4000 |
 | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — |
 | — | — | 6:49 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:40 | — |
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Grindstone Mountain Weather (Days 0-3):
The weather forecast for Grindstone Mountain is: Light rain (total 8mm), mostly falling on Tue afternoon. Very mild (max 11°C on Mon afternoon, min 3°C on Tue night). Wind will be generally light.
Grindstone Mountain Weather (Days 3-6):
Mostly dry. Very mild (max 15°C on Sat afternoon, min 8°C on Wed night). Wind will be generally light.
This table gives the weather forecast for Grindstone Mountain at the specific elevation of 1500 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 | |
* 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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