– Lat/Long: 47.64° N 120.91° W
Grindstone Mountain Weather Forecast
Cascade Range · United StatesIssued: 4 pm Wed 23 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Wed 23 Sep Local Time
Updates in:
Update imminent hr min s
3 Grindstone Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 16mm) heaviest on Thu night, then becoming colder with a dusting of snow on Fri night. Very mild (max 13°C on Thu afternoon, min 1°C on Fri night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Very mild (max 10°C on Sun afternoon, min 4°C on Sat night). Wind will be generally light. | ||||||||||||||||
Wed 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  |  |  | | | | | |  | | | | |
clear | some clouds | some clouds | some clouds | mod. rain | rain shwrs | light rain | snow shwrs | some clouds | clear | some clouds | some clouds | clear | clear | clear | some clouds | some clouds | |
Cloud base (m) | 2700 | 6300 | 2000 | 1400 | 1550 | 900 | 950 | 2400 | 6600 | 5650 | 6000 | 2450 | 950 | ||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | 8 | 4 | 3 | 1.8 | — | — | — | — | — | — | — | — | — |
max °C | 12 | 9 | 11 | 13 | 11 | 7 | 5 | 4 | 4 | 7 | 4 | 7 | 10 | 6 | 7 | 9 | 5 |
min °C | 11 | 6 | 8 | 13 | 7 | 7 | 4 | 1 | 1 | 7 | 4 | 4 | 10 | 4 | 4 | 8 | 5 |
chill °C | 10 | 4 | 7 | 12 | 6 | 6 | 1 | -3 | -3 | 5 | 3 | 4 | 10 | 1 | 1 | 5 | 2 |
Freezing level m | 3050 | 3450 | 3500 | 3500 | 2950 | 2300 | 2250 | 1750 | 2150 | 2450 | 2500 | 2750 | 2750 | 2450 | 2550 | 2750 | 3200 |
 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — |
 | 7:00 | — | — | 6:57 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — | — | 6:49 | — |
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Grindstone Mountain Weather (Days 0-3):
The weather forecast for Grindstone Mountain is: Moderate rain (total 16mm) heaviest on Thu night, then becoming colder with a dusting of snow on Fri night. Very mild (max 13°C on Thu afternoon, min 1°C on Fri night). Wind will be generally light.
Grindstone Mountain Weather (Days 3-6):
Mostly dry. Very mild (max 10°C on Sun afternoon, min 4°C on Sat 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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