– Lat/Long: 47.64° N 120.91° W
Grindstone Mountain Weather Forecast
Cascade Range · United StatesIssued: 10 am Fri 25 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Fri 25 Sep Local Time
Updates in:
Update imminent hr min s
3 Grindstone Mountain Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryModerate rain (total 15mm), heaviest on Fri night. Very mild (max 17°C on Sun afternoon, min 6°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 7mm), mostly falling on Tue afternoon. Very mild (max 18°C on Mon afternoon, min 6°C on Tue night). Wind will be generally light. | |||||||||||||||||
Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | |  |  | | | |  | | | | |  | |
rain shwrs | mod. rain | rain shwrs | clear | clear | cloudy | clear | some clouds | some clouds | clear | clear | some clouds | cloudy | mod. rain | rain shwrs | some clouds | some clouds | clear | |
Cloud base (m) | 1800 | 1450 | 950 | 950 | 6450 | 5900 | 6700 | 7900 | 6550 | 3350 | 2250 | 1600 | 900 | 900 | 2100 | 900 | ||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 4 | 6 | 5 | — | — | — | — | — | — | — | — | — | — | 5 | 1.8 | — | — | — |
max °C | 14 | 12 | 8 | 11 | 15 | 10 | 15 | 17 | 11 | 16 | 18 | 12 | 15 | 13 | 13 | 10 | 13 | 8 |
min °C | 13 | 9 | 6 | 6 | 14 | 9 | 10 | 17 | 9 | 10 | 18 | 11 | 12 | 13 | 6 | 7 | 13 | 6 |
chill °C | 13 | 8 | 4 | 4 | 14 | 9 | 10 | 17 | 8 | 9 | 18 | 10 | 12 | 13 | 4 | 6 | 12 | 5 |
Freezing level m | 2500 | 1950 | 1650 | 2200 | 2500 | 2450 | 2650 | 2750 | 2900 | 3100 | 3200 | 3450 | 3000 | 3000 | 2250 | 2100 | 2350 | 1900 |
 | 6:52 | — | — | 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: Moderate rain (total 15mm), heaviest on Fri night. Very mild (max 17°C on Sun afternoon, min 6°C on Fri night). Wind will be generally light.
Grindstone Mountain Weather (Days 3-6):
Light rain (total 7mm), mostly falling on Tue afternoon. Very mild (max 18°C on Mon afternoon, min 6°C on Tue night). 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 |
|---|---|---|---|---|---|
 | |||||
 | |||||
lightning 54km NE of Darrington |  | ||||
 | |||||
 | |||||
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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