– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Mon 16 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 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 light covering of new snow mostly falling on Mon afternoon. Freeze-thaw conditions (max 3°C on Mon morning, min -3°C on Mon night). Wind will be generally light.									Days 4–6 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 5°C on Sat morning, min -2°C on Thu afternoon). Winds increasing (calm on Thu morning, fresh winds from the ESE by Sat night).
	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

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

Freezing level m	750	700	150	650	700	350	400	500	300	400	400	250	350	650	250	1100	1200	1450
Cloud base (m)	600	1550	350	1800	800	400	400	500	400	400	400	650	400	400	1600	1650	2750	600

	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 light covering of new snow mostly falling on Mon afternoon. Freeze-thaw conditions (max 3°C on Mon morning, min -3°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

A dusting of new snow. Freeze-thaw conditions (max 5°C on Sat morning, min -2°C on Thu afternoon). Winds increasing (calm on Thu morning, fresh winds from the ESE by Sat night).

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 125).
Black Diamond 32 km SSW 192m alt. 58 minutes ago		-	Calm (3 kph at 144).
Renton Airport 36 km WSW 218m alt. 3 hours ago	1° C	Dry and partly cloudy.	Light winds from the SSE (6 kph at 150).	16 km Low: scattered
Auburn 39 km SW 119m alt. 2 hours ago	-1° C	-	Calm (0 kph at 208).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-3° C	Moderate rain .	Calm (0 kph at 0).	16 km Low: scattered Mid: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	2° C	Dry and partly cloudy.	Light winds from the SSE (6 kph at 150).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	2° C	Dry and partly cloudy.	Light winds from the SSE (7 kph at 150).	16 km Low: scattered Mid: scattered
Snohomish 49 km NW 196m alt. 50 minutes ago	1° C	-	Calm (0 kph at 35).
SHIP8324 54 km W 15m alt. 4 hours ago			Calm (6 kph at 130).	- km
SHIP9154 54 km W 15m alt. 4 hours ago			Calm (6 kph at 130).	- 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.