– Lat/Long: 47.51° N 121.74° W
Mount Si Weather Forecast
Cascade Range · United StatesIssued: 3 pm Tue 03 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 3 pm Tue 03 Nov Local Time
Updates in:
Update imminent hr min s
2 Mount Si Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 8mm), mostly falling on Wed night. Very mild (max 13°C on Wed morning, min 6°C on Thu night). Wind will be generally light. | Days 5–7 Weather SummaryHeavy rain (total 24mm), heaviest during Sat night. Very mild (max 15°C on Sat morning, min 4°C on Sun night). Wind will be generally light. | ||||||||||||||||
Tue 3 | Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  |  | | | | |  | |  | | | | |
clear | clear | clear | cloudy | rain shwrs | rain shwrs | light rain | rain shwrs | light rain | cloudy | rain shwrs | some clouds | rain shwrs | heavy rain | rain shwrs | some clouds | clear | |
Cloud base (m) | 2350 | 9300 | 2900 | 450 | 500 | 600 | 3450 | 2200 | 1600 | 2300 | 8400 | 450 | 500 | ||||
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | 6 | 1.4 | 0.4 | 0.3 | 0.1 | — | 0.1 | — | 0.3 | 22 | 2 | — | — |
max °C | 12 | 8 | 13 | 11 | 8 | 9 | 8 | 7 | 8 | 10 | 11 | 15 | 13 | 6 | 7 | 7 | 5 |
min °C | 9 | 7 | 12 | 9 | 7 | 7 | 8 | 6 | 8 | 10 | 10 | 13 | 9 | 5 | 6 | 5 | 4 |
chill °C | 9 | 7 | 12 | 7 | 4 | 5 | 8 | 5 | 7 | 10 | 9 | 12 | 7 | 2 | 4 | 4 | 4 |
Freezing level m | 2600 | 2850 | 2700 | 2300 | 1700 | 1550 | 1750 | 2450 | 2400 | 3100 | 2900 | 3200 | 2800 | 1400 | 1300 | 1400 | 2000 |
 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — |
 | 4:45 | — | — | 4:44 | — | — | 4:43 | — | — | 4:42 | — | — | 4:39 | — | — | 4:38 | — |
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Mount Si Weather (Days 0-3):
The weather forecast for Mount Si is: Light rain (total 8mm), mostly falling on Wed night. Very mild (max 13°C on Wed morning, min 6°C on Thu night). Wind will be generally light.
Mount Si Weather (Days 3-6):
Heavy rain (total 24mm), heaviest during Sat night. Very mild (max 15°C on Sat morning, min 4°C on Sun 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 |
|---|---|---|---|---|---|
 | |||||
| |||||
Seattl / oeing Airport | | ||||
| |||||
BUOY-EBSW1 | |||||
* 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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