– Lat/Long: 47.64° N 120.91° W
Grindstone Mountain
Weather Forecast, United StatesIssued: 4 pm Sun 30 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sun 30 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sun 30 Aug 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 5°C on Tue night). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 4mm) at first, then becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 6°C on Wed afternoon, min -2°C on Thu morning). Winds decreasing (strong winds from the W on Wed night, calm by Fri morning). | ||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | |  |  | | |  |  | | | | | | |
some clouds | clear | clear | clear | some clouds | clear | rain shwrs | rain shwrs | clear | rain shwrs | snow shwrs | cloudy | cloudy | some clouds | some clouds | some clouds | clear | |
Cloud base (m) | 2350 | 9150 | 5500 | 8350 | 3300 | 850 | 1500 | 2450 | 850 | 850 | 850 | 1750 | 1550 | 2700 | 8550 | ||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
mm | — | — | — | — | — | — | 0.2 | 0.2 | — | 0.8 | 3 | — | — | — | — | — | — |
max °C | 7 | 7 | 10 | 12 | 11 | 11 | 12 | 8 | 5 | 6 | 3 | -1 | 0 | 0 | 2 | 4 | 3 |
min °C | 7 | 6 | 7 | 11 | 10 | 9 | 10 | 5 | 5 | 4 | -1 | -2 | -1 | -1 | 0 | 4 | 3 |
chill °C | 3 | 2 | 5 | 11 | 8 | 8 | 9 | 1 | 2 | 2 | -9 | -10 | -8 | -7 | -4 | 4 | 0 |
Freezing level m | 3500 | 3800 | 3850 | 3800 | 3950 | 3750 | 3700 | 3600 | 2900 | 2850 | 2350 | 2050 | 2250 | 2200 | 2500 | 2750 | 2900 |
 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — |
 | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — |
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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 5°C on Tue night). Wind will be generally light.
Grindstone Mountain Weather (Days 3-6):
Light rain (total 4mm) at first, then becoming colder with a dusting of snow on Wed night. Freeze-thaw conditions (max 6°C on Wed afternoon, min -2°C on Thu morning). Winds decreasing (strong winds from the W on Wed night, calm by Fri morning).
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 |
|---|---|---|---|---|---|
 | |||||
| |||||
 | |||||
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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