– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Mon 16 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Mon 16 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary A moderate fall of snow, heaviest on Mon afternoon. Freeze-thaw conditions (max 3°C on Mon morning, min -3°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary A light covering of new snow mostly falling on Thu morning. 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
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

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

Freezing level m	750	650	100	500	700	150	350	550	200	400	400	200	450	700	250	1250	1550	1650
Cloud base (m)	750	1650	400	1650	1450	400	400	400	400	400	400	400	400	400	1550	1950	1950	400

	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 moderate fall of snow, heaviest on Mon afternoon. Freeze-thaw conditions (max 3°C on Mon morning, min -3°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

A light covering of new snow mostly falling on Thu morning. 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. 57 minutes ago	7° C	Dry	Calm (0 kph at 31).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (5 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	5° C	Dry and cloudy.	Light winds from the S (15 kph at 180).	16 km Low: overcast
Auburn 39 km SW 119m alt. 1 hour ago	18° C	Dry	Calm (0 kph at 216).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-3° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	4° C	Dry and cloudy.	Light winds from the SSE (19 kph at 160).	16 km Low: broken Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	4° C	Dry and partly cloudy.	Light winds from the ESE (15 kph at 120).	16 km Low: few Mid: scattered High: broken
Snohomish 49 km NW 196m alt. 2 hours ago	4° C	Dry	Calm (5 kph at 28).
Seattle 49 km WSW 100m alt. 2 hours ago		-	Calm (3 kph at 5).
SHIP8982 54 km W 15m alt. 3 hours ago			Light winds from the SSE (17 kph at 150).	- 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.