– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 10 am Thu 01 Oct Local Time

Updates in:

hr min s

Update imminent

Issued: 10 am Thu 01 Oct Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 21°C on Sat afternoon, min 13°C on Thu morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 22°C on Sun afternoon, min 10°C on Tue morning). Wind will be generally light.
	Thursday 1			Friday 2			Saturday 3			Sunday 4			Monday 5			Tuesday 6
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	some clouds	clear	rain shwrs	rain shwrs	some clouds	clear
Cloud base (m)	3050	2300	2700	900	900	7200					8850	6600	6150		500	600	4850
km/h	S	WSW	S	WSW	WNW	E	E	NNW	ESE	NW	WNW	SSE	WNW	WSW	W	NNW	NNW	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.4	0.1	—	—
max °C	17	19	14	17	19	15	19	21	16	21	22	17	17	18	14	13	15	12
min °C	13	18	13	13	18	14	14	20	15	15	22	15	14	18	11	10	15	10
chill °C	13	18	13	13	18	14	14	20	15	15	22	15	14	18	11	10	15	10

Freezing level m	3500	3450	3350	3350	3550	4100	4100	4150	4200	4200	4150	4050	3650	3450	3500	3650	3750	3800

	7:05	—	—	7:05	—	—	7:07	—	—	7:09	—	—	7:09	—	—	7:11	—	—
	—	6:46	—	—	6:45	—	—	6:43	—	—	6:40	—	—	6:38	—	—	6:37	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 21°C on Sat afternoon, min 13°C on Thu morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 22°C on Sun afternoon, min 10°C on Tue 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
Renton 30 km WSW 160m alt. 2 hours ago	20°C	Dry	Calm (2 kph at 295).
Renton Airport 36 km WSW 218m alt. 2 hours ago	18°C	Clear	Light winds from the NW (6 kph at 320).	16 km
Auburn 39 km SW 119m alt. 25 minutes ago	24°C	Dry	Calm (0 kph at 79).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	13°C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: few Mid: overcast
SHIP2179 43 km W 15m alt. 3 hours ago			Light winds from the WNW (10 kph at 300).	- km
Monroe 44 km NW 80m alt. 1 hour ago	15°C	Dry	Calm (0 kph at 233).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	18°C	Clear	Light winds from the N (6 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	18°C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: scattered Mid: scattered High: broken
BUOY-EBSW1 46 km W 3m alt. 54 minutes ago
Snohomish 49 km NW 196m alt. 1 hour ago	16°C	Dry	Calm (3 kph at 296).

* 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.