– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Sun 08 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sun 08 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 2°C on Sun morning, min -3°C on Sun night). Winds increasing (calm on Sun morning, fresh winds from the SW by Sun night).									Days 4–6 Weather Summary A light covering of new snow mostly falling on Thu night. Freeze-thaw conditions (max 2°C on Wed morning, min -3°C on Thu night). Winds increasing (calm on Wed afternoon, strong winds from the SW by Thu night).
	Sunday 8			Monday 9			Tuesday 10			Wednesday 11			Thursday 12			Friday 13
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	cloudy	snow shwrs	cloudy	some clouds	clear	some clouds	clear	clear	clear	clear	some clouds	some clouds	cloudy	light snow	light snow	some clouds	some clouds
km/h	W	WSW	SW	SW	SW	SE	ESE	ESE	E	ESE	SE	SW	SW	SW	SW	SW	SW	SSW
See all weather maps
cm	—	—	2	—	—	—	—	—	—	—	—	—	—	—	3	2	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	2	-1	-2	-1	-1	1	2	2	1	2	2	1	-1	-1	-1	-3	-3	-2
min °C	1	-2	-3	-2	-1	-1	2	2	1	2	2	0	-1	-1	-3	-3	-3	-3
chill °C	-1	-7	-10	-9	-6	-4	-2	-1	-2	-1	1	-5	-7	-7	-10	-10	-7	-5

Freezing level m	1600	1200	950	1050	1150	1000	1600	1600	1550	1600	1650	1500	1200	1150	1050	800	900	500
Cloud base (m)	600	450	550	450	450	800		6850	400				1500	950	450	500	550	500

	7:22	—	—	7:20	—	—	7:20	—	—	7:18	—	—	7:16	—	—	7:15	—	—
	—	5:19	—	—	5:21	—	—	5:22	—	—	5:23	—	—	5:24	—	—	5:27	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A dusting of new snow. Freeze-thaw conditions (max 2°C on Sun morning, min -3°C on Sun night). Winds increasing (calm on Sun morning, fresh winds from the SW by Sun night).

Mount Si Weather (Days 3-6):

A light covering of new snow mostly falling on Thu night. Freeze-thaw conditions (max 2°C on Wed morning, min -3°C on Thu night). Winds increasing (calm on Wed afternoon, strong winds from the SW by Thu night).

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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
Harman Heights wx 6 km SSW 251m alt. 1 hour ago	2° C	-	Calm (0 kph at 5).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (3 kph at 0).
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. 26 minutes ago	-3° C	-	Calm (0 kph at 196).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	1° C	Moderate rain .	Calm (0 kph at 0).	16 km Low: scattered
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	6° 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 30).	16 km Low: scattered Mid: overcast
Snohomish 49 km NW 196m alt. 3 hours ago	1° C	-	Calm (0 kph at 146).
Seattle 49 km WSW 100m alt. 1 hour ago	10° C	-
SHIP1035 54 km W -m alt. 39 minutes ago	8° C	-	Calm (4 kph at 280).

* 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.