– Lat/Long: 47.51° N 121.74° W
Mount Si Weather Forecast
Cascade Range · United StatesIssued: 4 pm Mon 26 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Mon 26 Oct Local Time
Updates in:
Update imminent hr min s
2 Mount Si Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 30mm), heaviest during Tue night. Mild temperatures (max 8°C on Mon afternoon, min 3°C on Wed night). Wind will be generally light. | Days 5–7 Weather SummaryHeavy rain (total 20mm), heaviest during Fri afternoon. Mild temperatures (max 9°C on Thu afternoon, min 2°C on Fri night). Wind will be generally light. | ||||||||||||||||
Mon 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | | | |  | |  | | | |  | |  | |
rain shwrs | light rain | rain shwrs | light rain | rain shwrs | light rain | light rain | rain shwrs | clear | rain shwrs | some clouds | light rain | light rain | rain shwrs | cloudy | light rain | mod. rain | |
Cloud base (m) | 400 | 700 | 400 | 450 | 400 | 450 | 550 | 900 | 1600 | 2000 | 2150 | 650 | 700 | 800 | 800 | 850 | 450 |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 3 | 0.9 | 4 | 2 | 13 | 4 | 2 | 1.2 | — | 0.1 | — | 0.5 | 4 | 3 | — | 1.1 | 8 |
max °C | 8 | 7 | 7 | 8 | 6 | 6 | 6 | 4 | 7 | 9 | 4 | 6 | 7 | 4 | 6 | 7 | 4 |
min °C | 7 | 7 | 6 | 7 | 4 | 5 | 6 | 3 | 3 | 8 | 3 | 3 | 4 | 2 | 3 | 5 | 4 |
chill °C | 7 | 7 | 6 | 4 | 1 | 2 | 4 | 1 | 1 | 7 | 0 | 3 | 3 | 0 | 1 | 5 | 4 |
Freezing level m | 1750 | 1600 | 1550 | 1450 | 1400 | 1350 | 1350 | 1150 | 1450 | 1500 | 1200 | 1250 | 1200 | 1150 | 1250 | 1250 | 1100 |
 | — | — | 7:41 | — | — | 7:43 | — | — | 7:45 | — | — | 7:47 | — | — | 7:48 | — | — |
 | 5:59 | — | — | 5:58 | — | — | 5:55 | — | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — |
Loading...
Mount Si Weather (Days 0-3):
The weather forecast for Mount Si is: Heavy rain (total 30mm), heaviest during Tue night. Mild temperatures (max 8°C on Mon afternoon, min 3°C on Wed night). Wind will be generally light.
Mount Si Weather (Days 3-6):
Heavy rain (total 20mm), heaviest during Fri afternoon. Mild temperatures (max 9°C on Thu afternoon, min 2°C on Fri 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 |
|---|---|---|---|---|---|
 | |||||
 | |||||
SHIP2507 | |||||
SHIP4855 | |||||
SHIP1604 | |||||
SHIP4077 | |||||
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.
Mount Si Photos
View all
Cascade Range photos (454) |
Pacific Coast Ranges photos (1063) |
photos from mountains in United States (3071) |
all photos
Upload new photo
Upload new photoSunset on the Summit
Mt Si
Mount Si