– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Tue 17 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Tue 17 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary A moderate fall of snow, heaviest on Tue afternoon. Freeze-thaw conditions (max 2°C on Tue afternoon, min -6°C on Thu night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 3mm) at first, then becoming colder with a dusting of snow on Mon morning. Freeze-thaw conditions (max 7°C on Sun morning, min -2°C on Fri night). Wind will be generally light.
	Tue 17		Wednesday 18			Thursday 19			Friday 20			Saturday 21			Sunday 22
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	mod. snow	snow shwrs	cloudy	cloudy	cloudy	some clouds	clear	some clouds	cloudy	cloudy	cloudy	some clouds	some clouds	cloudy	light rain	light rain
km/h	WNW	NW	WNW	SW	ENE	NNE	NW	SE	SSW	S	ESE	ESE	ESE	ESE	ESE	SE	SE
See all weather maps
cm	3	7	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.1	3
max °C	2	0	0	1	-3	0	-1	-5	1	1	0	4	4	2	7	5	4
min °C	0	-1	-1	-2	-4	-1	-3	-6	-1	-1	-2	3	2	1	6	4	3
chill °C	0	-4	-3	-2	-6	-1	-3	-6	-3	-3	-5	-1	-3	-4	2	0	-2

Freezing level m	700	450	350	550	0	300	450	0	400	650	0	1200	1200	1700	1900	1800	1750
Cloud base (m)	750	400	400	400	850	1700	450	650	550	450	400	400	4500	400	400	2250	2000

	—	—	7:05	—	—	7:05	—	—	7:03	—	—	7:01	—	—	6:58	—	—
	5:32	—	—	5:35	—	—	5:36	—	—	5:37	—	—	5:39	—	—	5:40	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A moderate fall of snow, heaviest on Tue afternoon. Freeze-thaw conditions (max 2°C on Tue afternoon, min -6°C on Thu night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 3mm) at first, then becoming colder with a dusting of snow on Mon morning. Freeze-thaw conditions (max 7°C on Sun morning, min -2°C on Fri 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. 1 hour ago	1° C	-	Calm (0 kph at 347).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Wind obs. (10 kph from 223 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 1 hour ago	4° C	Dry and cloudy.	Light winds from the SSW (7 kph at 200).	16 km Low: scattered Mid: overcast
Auburn 39 km SW 119m alt. 44 minutes ago	2° C	-	Calm (0 kph at 34).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-5° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: scattered Mid: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	4° C	Light rain .	Light winds from the SE (17 kph at 140).	14 km Low: broken Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 1 hour ago	3° C	Light rain .	Light winds from the SSE (11 kph at 150).	13 km Low: overcast
Snohomish 49 km NW 196m alt. 2 hours ago	2° C	-	Calm (0 kph at 9).
SHIP3316 54 km W 15m alt. 2 hours ago			Light winds from the SSE (8 kph at 160).	- km
SHIP4196 54 km W 15m alt. 3 hours ago			Light winds from the SSE (12 kph at 160).	- 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.