– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 10 pm Fri 23 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 10 pm Fri 23 Oct Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Very mild (max 12°C on Sat afternoon, min 5°C on Fri night). Wind will be generally light.										Days 5–7 Weather Summary Heavy rain (total 23mm), heaviest during Wed morning. Mild temperatures (max 7°C on Mon night, min 3°C on Thu morning). Wind will be generally light.
		Saturday 24			Sunday 25			Monday 26			Tuesday 27			Wednesday 28
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	some clouds	cloudy	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	some clouds	light rain	light rain	rain shwrs	mod. rain	rain shwrs	rain shwrs
Cloud base (m)	7050	3550	2750	2650	4200	4500	5900	2700	2600	1550	550	400	750	450	400	800
km/h	ESE	SSW	S	SE	ESE	NE	ESE	WSW	WNW	SSE	SW	SW	SSW	SSW	SSE	SE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	0.3	0.7	1.6	8	6	0.4
max °C	6	11	12	9	11	12	9	9	11	7	7	7	6	5	5	4
min °C	5	6	11	8	7	10	7	7	10	6	7	7	5	5	5	4
chill °C	5	6	11	7	5	10	7	7	10	6	6	5	2	2	4	3

Freezing level m	2450	2450	2550	2500	2250	2300	2500	2150	2000	1700	1550	1600	1250	1300	1300	1350

	—	7:37	—	—	7:39	—	—	7:41	—	—	7:41	—	—	7:43	—	—
	—	—	6:02	—	—	6:00	—	—	5:59	—	—	5:58	—	—	5:55	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 12°C on Sat afternoon, min 5°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 23mm), heaviest during Wed morning. Mild temperatures (max 7°C on Mon night, min 3°C on Thu morning). 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.

Live conditions reported by 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	4°C	Clear	Calm (0 kph at 0).	16 km
Auburn 39 km SW 119m alt. 46 minutes ago	11°C	Dry	Calm (0 kph at 192).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1°C	Clear	Calm (0 kph at 0).	16 km
Monroe 44 km NW 80m alt. 1 hour ago	11°C	Dry	Calm (0 kph at 234).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	5°C	Clear	Light winds from the SSE (6 kph at 150).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	6°C	Dry and partly cloudy.	Light winds from the ESE (11 kph at 120).	16 km Low: scattered Mid: scattered
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 50 minutes ago	3°C	Dry	Calm (0 kph at 261).
Seattle 49 km WSW 100m alt. 1 hour ago	11°C	-	Calm (0 kph at 32).

* 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.