– Lat/Long: 47.51° N 121.74° W
Mount Si
Weather Forecast, United StatesIssued: 9 pm Sat 24 Jan Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Sat 24 Jan Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Sat 24 Jan Local Time
Updates in:
Update imminent hr min s
2 Mount Si Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryMostly dry. Freeze-thaw conditions (max 7°C on Tue morning, min -1°C on Mon morning). Wind will be generally light. | Days 5–7 Weather SummaryA dusting of snow. Milder later with heavy rain (total 23mm) on Thu morning. Mild temperatures (max 6°C on Fri morning, min 1°C on Tue night). Mainly fresh winds. | ||||||||||||||||||
Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  | | | |  |  | |  |  | |  | | |  | |
clear | clear | clear | some clouds | cloudy | some clouds | some clouds | cloudy | cloudy | cloudy | light rain | light rain | light snow | mod. rain | light rain | mod. rain | light rain | light rain | rain shwrs | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | 0.1 | 2 | 1 | 5 | 2 | 6 | 2 | 4 | 1.1 | |
max °C | 2 | 3 | 2 | 1 | 1 | 0 | 4 | 7 | 5 | 2 | 3 | 2 | 3 | 3 | 4 | 5 | 6 | 4 | 4 |
min °C | 1 | 2 | 1 | 1 | -1 | -1 | 0 | 5 | 2 | 1 | 2 | 2 | 2 | 2 | 3 | 4 | 3 | 3 | 3 |
1 | 0 | -3 | -3 | -5 | -5 | -3 | 3 | -1 | -4 | -3 | -2 | -4 | -4 | -2 | 0 | -3 | -1 | -3 | |
1950 | 1800 | 1750 | 1700 | 1500 | 1200 | 1700 | 2250 | 2050 | 1550 | 1650 | 1600 | 1650 | 1750 | 1950 | 2250 | 2050 | 2000 | 2000 | |
Cloud base (m) | 8450 | 3250 | 1950 | 950 | 5500 | 5400 | 700 | 800 | 650 | 450 | 450 | 450 | 800 | 650 | 800 | 1550 | |||
 | — | 7:41 | — | — | 7:39 | — | — | 7:39 | — | — | 7:37 | — | — | 7:35 | — | — | 7:35 | — | — |
 | — | — | 4:57 | — | — | 4:59 | — | — | 5:00 | — | — | 5:01 | — | — | 5:04 | — | — | 5:05 | — |
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Mount Si Weather (Days 0-3):
The weather forecast for Mount Si is: Mostly dry. Freeze-thaw conditions (max 7°C on Tue morning, min -1°C on Mon morning). Wind will be generally light.
Mount Si Weather (Days 3-6):
A dusting of snow. Milder later with heavy rain (total 23mm) on Thu morning. Mild temperatures (max 6°C on Fri morning, min 1°C on Tue night). Mainly fresh winds.
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 |
|---|---|---|---|---|---|
 | |||||
| |||||
SHIP11753 | |||||
SHIP5841 | |||||
SHIP3192 | |||||
SHIP9100 | |||||
SHIP6385 |
* 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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