– Lat/Long: 47.51° N 121.74° W
Mount Si Weather Forecast
Cascade Range · United StatesIssued: 9 pm Thu 12 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Thu 12 Nov Local Time
Updates in:
Update imminent hr min s
2 Mount Si Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 26mm), heaviest during Sat night. Very mild (max 14°C on Fri morning, min 6°C on Sun afternoon). Mainly fresh winds. | Days 5–7 Weather SummaryLight rain (total 2mm), mostly falling on Sun night. Mild temperatures (max 8°C on Mon morning, min 4°C on Tue night). Wind will be generally light. | |||||||||||||||
Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  | | |  |  | | |  | |  | |
cloudy | cloudy | mod. rain | light rain | light rain | light rain | mod. rain | light rain | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | clear | clear | some clouds | |
Cloud base (m) | 5900 | 700 | 550 | 650 | 550 | 750 | 400 | 400 | 500 | 900 | 2350 | 550 | 900 | 6400 | 8900 | |
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | 6 | 3 | 0.3 | 2 | 9 | 5 | 1.4 | 1.4 | 0.2 | 0.1 | 0.6 | — | — | — |
max °C | 13 | 14 | 9 | 8 | 9 | 9 | 9 | 8 | 7 | 6 | 8 | 7 | 5 | 7 | 7 | 5 |
min °C | 12 | 11 | 8 | 7 | 9 | 8 | 8 | 7 | 6 | 5 | 7 | 5 | 5 | 6 | 5 | 4 |
chill °C | 10 | 10 | 7 | 5 | 8 | 6 | 5 | 5 | 5 | 5 | 6 | 4 | 4 | 6 | 3 | 1 |
Freezing level m | 3050 | 2800 | 2000 | 1750 | 1750 | 1750 | 2100 | 1700 | 1450 | 1350 | 1350 | 1400 | 1250 | 1250 | 1500 | 1850 |
 | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | — | 4:31 | — | — | 4:30 | — | — | 4:30 | — | — | 4:29 | — | — | 4:28 | — |
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Mount Si Weather (Days 0-3):
The weather forecast for Mount Si is: Heavy rain (total 26mm), heaviest during Sat night. Very mild (max 14°C on Fri morning, min 6°C on Sun afternoon). Mainly fresh winds.
Mount Si Weather (Days 3-6):
Light rain (total 2mm), mostly falling on Sun night. Mild temperatures (max 8°C on Mon morning, min 4°C on Tue night). Wind will be generally light.
This table gives the weather forecast for Mount Si at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Si. 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 |
|---|---|---|---|---|---|
 | |||||
| |||||
SHIP4169 | |||||
SHIP2035 | |||||
SHIP8414 | |||||
SHIP4380 | |||||
SHIP8656 | |||||
SHIP3028 |
* 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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