– Lat/Long: 47.64° N 120.91° W
Grindstone Mountain
Weather Forecast, United StatesIssued: 4 pm Fri 04 Sep Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Fri 04 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Fri 04 Sep Local Time
Updates in:
Update imminent hr min s
3 Grindstone Mountain Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 4mm), mostly falling on Fri afternoon. Very mild (max 14°C on Sun afternoon, min 6°C on Sat night). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Warm (max 21°C on Wed afternoon, min 7°C on Mon night). Wind will be generally light. | ||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | |  | |  |  | | |  | | | | | | |
rain shwrs | rain shwrs | rain shwrs | light rain | rain shwrs | some clouds | light rain | clear | clear | clear | clear | cloudy | clear | clear | clear | clear | clear | |
Cloud base (m) | 2000 | 2550 | 2500 | 2900 | 2250 | 3000 | 3150 | 2800 | 900 | 6400 | 6350 | 8550 | |||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1.9 | 0.6 | 0.1 | 0.7 | 0.7 | — | 0.1 | — | — | — | — | — | — | — | — | — | — |
max °C | 8 | 8 | 10 | 11 | 8 | 11 | 14 | 10 | 11 | 13 | 9 | 13 | 17 | 14 | 17 | 21 | 18 |
min °C | 7 | 7 | 7 | 10 | 6 | 7 | 13 | 7 | 8 | 13 | 7 | 11 | 16 | 12 | 13 | 21 | 14 |
chill °C | 6 | 7 | 7 | 9 | 5 | 7 | 12 | 5 | 6 | 12 | 6 | 11 | 16 | 12 | 13 | 21 | 13 |
Freezing level m | 2550 | 2450 | 2600 | 2650 | 2550 | 2800 | 2900 | 2850 | 3000 | 3250 | 3300 | 3400 | 3450 | 3850 | 3950 | 3950 | 3900 |
 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:31 | — | — | 6:31 | — | — |
 | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — |
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Grindstone Mountain Weather (Days 0-3):
The weather forecast for Grindstone Mountain is: Light rain (total 4mm), mostly falling on Fri afternoon. Very mild (max 14°C on Sun afternoon, min 6°C on Sat night). Wind will be generally light.
Grindstone Mountain Weather (Days 3-6):
Mostly dry. Warm (max 21°C on Wed afternoon, min 7°C on Mon 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 |
|---|---|---|---|---|---|
lightning 24km NNE of Tanner |  | ||||
lightning 15km NNE of Snoqualmie | | ||||
 | |||||
 | |||||
lightning 5km N of Ames Lake | | ||||
thunderstorm affecting Bothell | |
* 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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