– Lat/Long: 47.64° N 120.91° W
Grindstone Mountain
Weather Forecast, United StatesIssued: 10 pm Mon 31 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 pm Mon 31 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Mon 31 Aug Local Time
Updates in:
Update imminent hr min s
3 Grindstone Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 10mm), heaviest on Wed night. Warm (max 26°C on Tue afternoon, min 11°C on Wed night). Wind will be generally light. | Days 5–7 Weather SummaryModerate rain (total 15mm), heaviest on Thu night. Warm (max 26°C on Sun afternoon, min 10°C on Fri morning). Wind will be generally light. | |||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | | |  | | |  |  | | | |
some clouds | some clouds | rain shwrs | rain shwrs | some clouds | light rain | mod. rain | rain shwrs | light rain | heavy rain | light rain | rain shwrs | clear | clear | clear | clear | |
Cloud base (m) | 5100 | 5050 | 3550 | 850 | 1750 | 1900 | 850 | 1600 | 1950 | 850 | 900 | 1600 | 3200 | |||
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | 0.5 | 1.2 | — | 2 | 5 | 0.1 | 0.8 | 13 | 1.9 | 0.2 | — | — | — | — |
max °C | 20 | 24 | 26 | 16 | 17 | 18 | 14 | 15 | 16 | 14 | 11 | 16 | 14 | 19 | 23 | 18 |
min °C | 18 | 19 | 24 | 12 | 13 | 16 | 11 | 11 | 16 | 11 | 10 | 15 | 11 | 14 | 22 | 16 |
chill °C | 18 | 19 | 24 | 11 | 13 | 16 | 11 | 11 | 16 | 11 | 10 | 15 | 11 | 14 | 22 | 16 |
Freezing level m | 3950 | 3650 | 3600 | 3450 | 2800 | 2750 | 2400 | 2450 | 2550 | 2350 | 2350 | 2650 | 2800 | 3050 | 3300 | 3350 |
 | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — |
 | — | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — | — | 7:36 | — |
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Grindstone Mountain Weather (Days 0-3):
The weather forecast for Grindstone Mountain is: Moderate rain (total 10mm), heaviest on Wed night. Warm (max 26°C on Tue afternoon, min 11°C on Wed night). Wind will be generally light.
Grindstone Mountain Weather (Days 3-6):
Moderate rain (total 15mm), heaviest on Thu night. Warm (max 26°C on Sun afternoon, min 10°C on Fri morning). 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 |
|---|---|---|---|---|---|
 | |||||
| |||||
| |||||
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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