– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Sun 15 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sun 15 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Drizzle at first, then turning colder with dusting of snow on Mon afternoon. Freeze-thaw conditions (max 4°C on Sun morning, min -2°C on Mon night). Wind will be generally light.									Days 4–6 Weather Summary A moderate fall of snow, heaviest on Wed morning. Freeze-thaw conditions (max 1°C on Fri afternoon, min -2°C on Wed night). Wind will be generally light.
	Sunday 15			Monday 16			Tuesday 17			Wednesday 18			Thursday 19			Friday 20
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	light rain	some clouds	light rain	snow shwrs	some clouds	light snow	light snow	cloudy	snow shwrs	some clouds	light snow	light snow	light snow	light snow	cloudy	cloudy	cloudy
km/h	SW	W	S	SSW	SW	ESE	NE	NW	SSW	WNW	WNW	SW	WSW	SW	SW	WSW	WSW	SSE
See all weather maps
cm	—	—	—	—	2	—	1	1	—	2	—	3	1	1	5	—	—	—
mm	—	0.7	—	0.3	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	4	3	2	2	0	0	1	0	-1	0	0	-1	-1	-1	-1	0	1	1
min °C	3	2	-1	1	-1	-2	0	-1	-2	-1	-1	-2	-1	-1	-2	-1	0	0
chill °C	3	2	-4	-2	-4	-2	0	-1	-2	-4	-1	-2	-3	-4	-7	-4	0	-2

Freezing level m	1000	950	750	600	550	0	550	550	200	400	500	300	350	400	200	400	600	600
Cloud base (m)	2000	700	400	1500	350	600	650	450	500	400	400	450	400	400	400	400	400	450

	7:11	—	—	7:09	—	—	7:07	—	—	7:05	—	—	7:05	—	—	7:03	—	—
	—	5:30	—	—	5:31	—	—	5:32	—	—	5:35	—	—	5:36	—	—	5:37	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Drizzle at first, then turning colder with dusting of snow on Mon afternoon. Freeze-thaw conditions (max 4°C on Sun morning, min -2°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

A moderate fall of snow, heaviest on Wed morning. Freeze-thaw conditions (max 1°C on Fri afternoon, min -2°C on Wed 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
Harman Heights wx 6 km SSW 251m alt. 2 hours ago	2° C	-	Calm (2 kph at 119).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Wind obs. (6 kph from 360 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	4° C	Clear	Light winds from the N (9 kph at 1).	16 km
Auburn 39 km SW 119m alt. 53 minutes ago	9° C	Dry	Calm (0 kph at 159).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	Moderate rain .	Calm (0 kph at 0).	16 km Low: few Mid: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	3° C	Dry and partly cloudy.	Light winds from the N (6 kph at 1).	16 km Low: scattered
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	4° C	-	Light winds from the N (19 kph at 10).	16 km Low: few Mid: few High: scattered
Snohomish 49 km NW 196m alt. 1 hour ago	2° C	-	Calm (0 kph at 119).
Seattle 49 km WSW 100m alt. 2 hours ago		-
SHIP8015 51 km W 15m alt. 3 hours ago			Moderate winds from the NNE (21 kph at 30).	- km

* 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.