– Lat/Long: 47.51° N 121.74° W
Mount Si
Weather Forecast, United StatesIssued: 9 pm Wed 11 Feb Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Wed 11 Feb Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Wed 11 Feb Local Time
Updates in:
Update imminent hr min s
2 Mount Si Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryA light covering of new snow mostly falling on Fri night. Freeze-thaw conditions (max 3°C on Wed night, min -3°C on Fri night). Winds decreasing (fresh winds from the SW on Fri night, calm by Sat afternoon). | Days 5–7 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 1°C on Tue morning, min -3°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 12 | 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 | AM | PM | night | |
 |  | | |  |  |  | | | |  | | | | |  | | |  | |
some clouds | some clouds | some clouds | some clouds | cloudy | light snow | mod. snow | cloudy | cloudy | some clouds | clear | clear | some clouds | cloudy | cloudy | light snow | some clouds | cloudy | heavy snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | 2 | 6 | — | — | — | — | — | — | — | — | 1 | — | — | 13 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 3 | 2 | 1 | 0 | 0 | -1 | -1 | -3 | -3 | -3 | -3 | -3 | -2 | -1 | 0 | 0 | 1 | 0 | -3 |
min °C | 2 | 2 | 0 | -1 | 0 | -1 | -3 | -3 | -3 | -3 | -3 | -3 | -3 | -1 | -1 | -2 | 0 | -1 | -4 |
-1 | -2 | -5 | -6 | -6 | -7 | -8 | -6 | -3 | -3 | -3 | -3 | -3 | -5 | -6 | -5 | 0 | -3 | -12 | |
2100 | 1600 | 1450 | 1300 | 1200 | 1200 | 1000 | 850 | 900 | 700 | 800 | 900 | 300 | 1100 | 1350 | 1050 | 1300 | 1300 | 700 | |
Cloud base (m) | 3050 | 1850 | 500 | 400 | 400 | 400 | 550 | 450 | 500 | 600 | 400 | 4500 | 350 | 450 | 450 | 350 | |||
 | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:11 | — | — | 7:09 | — | — | 7:07 | — | — |
 | — | — | 5:24 | — | — | 5:27 | — | — | 5:29 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — |
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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 Fri night. Freeze-thaw conditions (max 3°C on Wed night, min -3°C on Fri night). Winds decreasing (fresh winds from the SW on Fri night, calm by Sat afternoon).
Mount Si Weather (Days 3-6):
A dusting of new snow. Freeze-thaw conditions (max 1°C on Tue morning, min -3°C on Sat night). Wind will be generally light.
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 |
|---|---|---|---|---|---|
 | |||||
| |||||
SHIP7543 | |||||
SHIP5746 | |||||
SHIP8332 | |||||
SHIP4618 | |||||
SHIP4025 |
* 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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