– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 10 pm Sat 31 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 10 pm Sat 31 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 13°C on Mon afternoon, min 4°C on Sun morning). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 8mm), mostly falling on Wed night. Very mild (max 12°C on Wed afternoon, min 6°C on Tue night). Wind will be generally light.
		Sunday 1			Monday 2			Tuesday 3			Wednesday 4			Thursday 5
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	some clouds	cloudy	cloudy	cloudy	some clouds	clear	clear	light rain	rain shwrs	some clouds	cloudy	light rain
Cloud base (m)	2050			8100	6550	5250	1850	2650	2450			1900	600	900	3000	550
km/h	E	NW	WNW	E	SSE	SE	E	N	WNW	SE	SW	SW	SW	SSW	SW	S
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	0.2	4	—	—	0.9
max °C	7	8	9	6	11	13	9	10	12	7	11	12	8	9	11	8
min °C	5	4	8	5	6	10	9	9	10	6	6	10	8	7	10	8
chill °C	5	4	8	5	5	10	8	8	10	6	5	9	6	6	10	8

Freezing level m	1900	1900	2000	3100	3250	3100	2650	2400	2300	2300	2300	2050	1750	2150	1950	1750

	—	6:50	—	—	7:50	—	—	7:52	—	—	7:54	—	—	7:56	—	—
	—	—	4:50	—	—	5:47	—	—	5:46	—	—	5:45	—	—	5:44	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 13°C on Mon afternoon, min 4°C on Sun morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 8mm), mostly falling on Wed night. Very mild (max 12°C on Wed afternoon, min 6°C on Tue 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.

Live conditions reported by 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Renton 30 km WSW 160m alt. 2 hours ago	5°C	Dry	Calm (0 kph at 49).
Black Diamond 32 km SSW 192m alt. 32 minutes ago		-	Calm (3 kph at 130).
Renton Airport 36 km WSW 218m alt. 2 hours ago	7°C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: broken
Auburn 39 km SW 119m alt. 1 hour ago	13°C	Dry	Calm (0 kph at 196).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	1°C	Mist -.	Calm (0 kph at 0).	1 km Low: few Mid: broken
SeattleS.-Tacoma-Wa. 43 km WSW 137m alt. 2 hours ago	6°C	-	Light winds from the NNW (7 kph at 330).	36 km Mid: scattered
Monroe 44 km NW 80m alt. 47 minutes ago	5°C	Dry	Calm (0 kph at 119).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	7°C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	6°C	Dry and cloudy.	Light winds from the NNE (7 kph at 20).	16 km Low: broken Mid: overcast
BUOY-EBSW1 46 km W 3m alt. 1 hour ago

* 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.