– Lat/Long: 47.51° N 121.74° W
Mount Si
Weather Forecast, United StatesIssued: 9 pm Mon 17 Nov Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Mon 17 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Mon 17 Nov Local Time
Updates in:
Update imminent hr min s
2 Mount Si Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 3mm), mostly falling on Mon night. Very mild (max 10°C on Wed morning, min 3°C on Tue afternoon). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 6mm), mostly falling on Sun afternoon. Very mild (max 10°C on Sat morning, min 6°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  |  | | |  |  | |  | |  | | | |  | |
light rain | rain shwrs | rain shwrs | clear | clear | some clouds | some clouds | some clouds | some clouds | cloudy | light rain | light rain | rain shwrs | some clouds | cloudy | light rain | rain shwrs | light rain | light snow | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
2 | 0.5 | 0.4 | — | — | — | — | — | — | — | 0.4 | 0.7 | 1.3 | — | — | 0.1 | 0.1 | 3 | 10 | |
max°C | 4 | 5 | 5 | 4 | 10 | 8 | 6 | 8 | 7 | 7 | 7 | 7 | 7 | 10 | 9 | 9 | 10 | 9 | 7 |
min°C | 4 | 4 | 3 | 3 | 8 | 6 | 5 | 6 | 5 | 6 | 7 | 7 | 6 | 8 | 9 | 9 | 10 | 7 | 2 |
2 | 4 | 3 | 3 | 6 | 3 | 3 | 5 | 5 | 6 | 6 | 5 | 5 | 8 | 9 | 8 | 9 | 7 | -2 | |
1050 | 1150 | 1200 | 1250 | 2400 | 2500 | 1800 | 1450 | 1550 | 1450 | 1600 | 2100 | 1600 | 1950 | 2150 | 2150 | 1900 | 2050 | 950 | |
Cloud base (m) | 500 | 450 | 750 | 700 | 6600 | 6200 | 6550 | 1600 | 800 | 700 | 550 | 450 | 450 | 950 | 1600 | 900 | 900 | 2250 | 450 |
 | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — |
 | — | — | 4:27 | — | — | 4:25 | — | — | 4:24 | — | — | 4:23 | — | — | 4:22 | — | — | 4:22 | — |
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Mount Si Weather (Days 0-3):
The weather forecast for Mount Si is: Light rain (total 3mm), mostly falling on Mon night. Very mild (max 10°C on Wed morning, min 3°C on Tue afternoon). Wind will be generally light.
Mount Si Weather (Days 3-6):
Light rain (total 6mm), mostly falling on Sun afternoon. Very mild (max 10°C on Sat morning, min 6°C on Thu 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 |
|---|---|---|---|---|---|
 | |||||
| |||||
SHIP6499 | |||||
SHIP4714 | |||||
SHIP5276 | |||||
SHIP3858 | |||||
SHIP4411 |
* 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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