– Lat/Long: 47.51° N 121.74° W
Mount Si
Weather Forecast, United StatesIssued: 9 am Sun 30 Nov Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 am Sun 30 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Sun 30 Nov Local Time
Updates in:
Update imminent hr min s
2 Mount Si Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryA light covering of new snow mostly falling on Mon night. Freeze-thaw conditions (max 2°C on Sun night, min -1°C on Tue morning). Winds increasing (calm on Sun morning, fresh winds from the WSW by Mon night). | Days 4–6 Weather SummaryHeavy rain (total 28mm), mostly on Thu night. Becoming colder with a light covering of snow, mostly falling on Fri afternoon. Freeze-thaw conditions (max 5°C on Thu night, min -1°C on Wed afternoon). Winds increasing (light winds from the WSW on Wed morning, gales from the WSW by Fri morning). | |||||||||||||||||
Sunday 30 | Monday 1 | Tuesday 2 | Wednesday 3 | Thursday 4 | Friday 5 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  |  | |  | | | | |  |  | | | | |
some clouds | clear | cloudy | cloudy | cloudy | light snow | snow shwrs | clear | some clouds | some clouds | cloudy | cloudy | cloudy | light snow | heavy rain | light snow | light snow | light snow | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | 4 | 1 | — | — | — | — | — | — | 1 | — | 1 | 5 | 1 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | 0.7 | 22 | 6 | — | — | |
max°C | 1 | 1 | 2 | 0 | 1 | 1 | -1 | 0 | 1 | 1 | -1 | 1 | 1 | 2 | 5 | 3 | 2 | -1 |
min°C | 0 | 1 | 1 | 0 | 1 | 0 | -1 | -1 | 1 | 0 | -1 | -1 | 1 | 2 | 3 | 1 | 0 | -1 |
0 | 0 | -2 | -3 | -2 | -7 | -7 | -1 | 1 | -2 | -4 | -4 | -3 | -2 | -3 | -7 | -8 | -10 | |
1350 | 1550 | 1850 | 1350 | 1500 | 1500 | 1150 | 1200 | 1450 | 1400 | 1150 | 1250 | 1450 | 1650 | 2350 | 1750 | 1500 | 1050 | |
Cloud base (m) | 7050 | 5200 | 2650 | 2150 | 850 | 400 | 450 | 450 | 650 | 600 | 950 | 450 | 450 | 400 | 400 | 400 | 400 | 400 |
 | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:37 | — | — |
 | — | 4:17 | — | — | 4:16 | — | — | 4:16 | — | — | 4:16 | — | — | 4:15 | — | — | 4:15 | — |
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Mount Si Weather (Days 0-3):
The weather forecast for Mount Si is: A light covering of new snow mostly falling on Mon night. Freeze-thaw conditions (max 2°C on Sun night, min -1°C on Tue morning). Winds increasing (calm on Sun morning, fresh winds from the WSW by Mon night).
Mount Si Weather (Days 3-6):
Heavy rain (total 28mm), mostly on Thu night. Becoming colder with a light covering of snow, mostly falling on Fri afternoon. Freeze-thaw conditions (max 5°C on Thu night, min -1°C on Wed afternoon). Winds increasing (light winds from the WSW on Wed morning, gales from the WSW by Fri morning).
This table gives the weather forecast for Mount Si at the specific elevation of 1270 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-WPOW1 |
* 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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