– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 3 pm Mon 02 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 3 pm Mon 02 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 4mm), mostly falling on Wed night. Very mild (max 13°C on Tue morning, min 7°C on Mon night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 6mm), mostly falling on Sat night. Very mild (max 17°C on Sat morning, min 7°C on Thu afternoon). Winds increasing (calm on Thu afternoon, fresh winds from the SSW by Sun morning).
	Mon 2		Tuesday 3			Wednesday 4			Thursday 5			Friday 6			Saturday 7
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	cloudy	some clouds	some clouds	clear	some clouds	cloudy	rain shwrs	rain shwrs	some clouds	rain shwrs	light rain	light rain	rain shwrs	clear	clear	rain shwrs
Cloud base (m)	5800	5100	2750	2200	8100	9050	2550	500	750	850	4950	1800	800	2400		8950	6000
km/h	SE	SE	SE	NW	ESE	SW	SW	SW	SW	WSW	SSE	S	SSW	S	SSE	SSE	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	4	0.4	—	0.3	1.2	0.1	0.1	—	—	2
max °C	11	8	13	10	8	12	10	8	9	9	7	9	10	11	17	15	13
min °C	8	7	10	9	7	11	8	7	8	7	7	7	10	10	15	13	11
chill °C	7	6	10	9	7	11	8	4	7	7	6	5	9	9	15	12	8

Freezing level m	3200	2650	2350	2400	2400	2350	2150	1750	1500	1850	2500	2500	3100	3200	3450	3250	2800

	—	—	6:54	—	—	6:54	—	—	6:56	—	—	6:58	—	—	7:00	—	—
	4:46	—	—	4:45	—	—	4:44	—	—	4:43	—	—	4:42	—	—	4:39	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 4mm), mostly falling on Wed night. Very mild (max 13°C on Tue morning, min 7°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 6mm), mostly falling on Sat night. Very mild (max 17°C on Sat morning, min 7°C on Thu afternoon). Winds increasing (calm on Thu afternoon, fresh winds from the SSW by Sun morning).

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.

Live conditions reported by 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Renton 30 km WSW 160m alt. 3 hours ago	8°C	Dry	Calm (0 kph at 321).
Renton Airport 36 km WSW 218m alt. 2 hours ago	8°C	Clear	Calm (0 kph at 0).	16 km
Auburn 39 km SW 119m alt. 2 hours ago	10°C	Dry	Calm (0 kph at 36).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	2°C	Clear	Calm (0 kph at 0).	16 km
Monroe 44 km NW 80m alt. 58 minutes ago	6°C	Dry	Calm (0 kph at 83).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	9°C	Haze -.	Calm (0 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	8°C	Dry and partly cloudy.	Light winds from the N (7 kph at 350).	16 km Low: broken Mid: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 1 hour ago	9°C	Dry	Calm (3 kph at 32).
Seattle 49 km WSW 100m alt. 2 hours ago		-	Calm (2 kph at 322).

* 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.