– Lat/Long: 47.51° N 121.74° W
Mount Si Weather Forecast
Cascade Range · United StatesIssued: 3 pm Sat 07 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Sat 07 Nov Local Time
Updates in:
Update imminent hr min s
2 Mount Si Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 35mm), heaviest during Sat night. Very mild (max 14°C on Sat afternoon, min 5°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, calm by Sun afternoon). | Days 5–7 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 17°C on Thu morning, min 10°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||
Sat 7 | Sunday 8 | Monday 9 | Tuesday 10 | Wednesday 11 | Thursday 12 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | |  | | | | |  | | |  | | | |
cloudy | rain shwrs | rain shwrs | rain shwrs | some clouds | cloudy | light rain | rain shwrs | light rain | light rain | rain shwrs | some clouds | some clouds | some clouds | clear | some clouds | some clouds | |
Cloud base (m) | 6750 | 500 | 550 | 2150 | 5750 | 2350 | 1800 | 500 | 650 | 550 | 5650 | 7750 | 8050 | 8850 | 8750 | 6350 | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | 20 | 3 | 0.1 | — | — | 5 | 5 | 3 | 1.7 | 0.7 | — | — | — | — | — | — |
max °C | 14 | 11 | 8 | 7 | 7 | 12 | 9 | 8 | 9 | 10 | 11 | 16 | 15 | 13 | 17 | 14 | 12 |
min °C | 13 | 7 | 7 | 6 | 5 | 9 | 7 | 7 | 8 | 10 | 11 | 14 | 12 | 12 | 15 | 12 | 10 |
chill °C | 11 | 3 | 4 | 6 | 4 | 8 | 4 | 5 | 7 | 9 | 10 | 14 | 11 | 11 | 15 | 12 | 9 |
Freezing level m | 3000 | 1700 | 1400 | 1500 | 1850 | 1950 | 2000 | 2000 | 2350 | 2850 | 3250 | 3450 | 3550 | 3600 | 3600 | 3300 | 2900 |
 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:07 | — | — |
 | 4:39 | — | — | 4:38 | — | — | 4:37 | — | — | 4:36 | — | — | 4:35 | — | — | 4:34 | — |
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Mount Si Weather (Days 0-3):
The weather forecast for Mount Si is: Heavy rain (total 35mm), heaviest during Sat night. Very mild (max 14°C on Sat afternoon, min 5°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, calm by Sun afternoon).
Mount Si Weather (Days 3-6):
Light rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 17°C on Thu morning, min 10°C on Tue afternoon). 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 |
|---|---|---|---|---|---|
 | |||||
 | |||||
SHIP3517 | |||||
SHIP2678 | |||||
SHIP9569 | |||||
SHIP8018 | |||||
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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