– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Sun 15 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Sun 15 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 3°C on Mon morning, min -2°C on Mon night). Wind will be generally light.										Days 5–7 Weather Summary A light covering of new snow mostly falling on Wed night. Freeze-thaw conditions (max 5°C on Sat morning, min -3°C on Thu night). Wind will be generally light.
		Monday 16			Tuesday 17			Wednesday 18			Thursday 19			Friday 20			Saturday 21
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	light rain	light snow	snow shwrs	cloudy	some clouds	snow shwrs	some clouds	some clouds	light snow	some clouds	cloudy	cloudy	light snow	cloudy	cloudy	light rain	some clouds	some clouds
km/h	SSW	WSW	SW	S	SE	NNW	NW	W	WSW	SSW	NW	W	SSW	SSW	SSW	ESE	SE	ESE	ESE
See all weather maps
cm	—	—	2	1	—	—	1	—	—	3	—	—	—	2	—	—	—	—	—
mm	—	0.1	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0.3	—	—
max °C	2	3	1	0	2	2	-1	0	1	0	0	0	-2	1	1	2	5	5	4
min °C	1	2	0	-2	0	-1	-2	-1	-1	-2	0	-2	-3	0	0	1	4	3	4
chill °C	-1	0	-4	-2	0	-1	-2	-4	-3	-4	0	-2	-6	-3	-2	-2	0	-2	-1

Freezing level m	800	750	700	100	500	700	350	350	600	150	450	450	0	450	700	950	1400	1650	1650
Cloud base (m)	700	350	1800	350	1650	1350	400	400	450	400	650	450	400	550	400	1750	1500	1750	1750

	—	7:09	—	—	7:07	—	—	7:05	—	—	7:05	—	—	7:03	—	—	7:01	—	—
	—	—	5:31	—	—	5:32	—	—	5:35	—	—	5:36	—	—	5:37	—	—	5:39	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A dusting of new snow. Freeze-thaw conditions (max 3°C on Mon morning, min -2°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

A light covering of new snow mostly falling on Wed night. Freeze-thaw conditions (max 5°C on Sat morning, min -3°C on Thu 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	1° C	-	Calm (0 kph at 342).
Black Diamond 32 km SSW 192m alt. 53 minutes ago		-	Calm (2 kph at 223).
Renton Airport 36 km WSW 218m alt. 2 hours ago	3° C	Clear	Light winds from the S (6 kph at 170).	16 km
Auburn 39 km SW 119m alt. 43 minutes ago	4° C	Dry	Calm (0 kph at 208).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	Mist -.	Calm (0 kph at 0).	6 km Low: broken Mid: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	4° C	Clear	Calm (0 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	4° C	Dry and partly cloudy.	Light winds from the N (7 kph at 0).	16 km Low: broken
Snohomish 49 km NW 196m alt. 32 minutes ago	0° C	-	Calm (0 kph at 159).
SHIP5722 54 km W 3m alt. 3 hours ago	5° C		Calm (2 kph at 10).
SHIP2586 54 km W 15m alt. 2 hours ago			Calm (2 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.