– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Fri 13 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Fri 13 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 21mm), mostly on Fri night. Becoming colder with a light covering of snow ,mostly falling on Mon morning. Mild temperatures (max 5°C on Fri afternoon, min 1°C on Mon morning). Wind will be generally light.											Days 5–7 Weather Summary A light covering of new snow mostly falling on Mon night. Freeze-thaw conditions (max 2°C on Mon afternoon, min -4°C on Tue night). Wind will be generally light.
	Fri 13		Saturday 14			Sunday 15			Monday 16			Tuesday 17			Wednesday 18
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	mod. rain	rain shwrs	light rain	cloudy	light rain	mod. rain	light snow	light snow	some clouds	light snow	some clouds	cloudy	clear	some clouds	some clouds	light snow
km/h	S	SW	SSW	N	NE	ESE	W	SSE	WSW	SW	NE	W	W	ESE	W	WNW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	1	4	—	1	—	—	—	—	—	3
mm	2	9	0.7	0.1	—	1.7	6	1.9	—	—	—	—	—	—	—	—	—
max °C	5	3	4	4	2	3	2	3	1	2	-1	1	2	-3	1	1	0
min °C	4	2	3	3	2	2	2	2	1	0	-1	1	-1	-4	0	-2	-1
chill °C	2	-1	2	3	2	2	2	2	0	0	-1	1	-1	-4	0	-2	-3

Freezing level m	1200	950	900	1050	850	950	950	1050	600	750	200	600	700	0	500	700	450
Cloud base (m)	700	400	400	650	400	400	400	350	350	350	450	400	400	500	400	550	400

	—	—	7:13	—	—	7:11	—	—	7:09	—	—	7:07	—	—	7:05	—	—
	5:27	—	—	5:29	—	—	5:30	—	—	5:31	—	—	5:32	—	—	5:35	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 21mm), mostly on Fri night. Becoming colder with a light covering of snow ,mostly falling on Mon morning. Mild temperatures (max 5°C on Fri afternoon, min 1°C on Mon morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

A light covering of new snow mostly falling on Mon night. Freeze-thaw conditions (max 2°C on Mon afternoon, min -4°C on Tue 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	4° C	Dry	Calm (0 kph at 350).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 1 hour ago	7° C	Dry and cloudy.	Light winds from the SSW (7 kph at 200).	16 km Low: broken Mid: broken High: overcast
Auburn 39 km SW 119m alt. 23 minutes ago	6° C	Dry	Calm (0 kph at 272).
Stampede Pass Airport 40 km SE 628m alt. 59 minutes ago	-1° C	Light snow.	Calm (0 kph at 0).	1 km Mid: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	7° C	Light rain .	Light winds from the N (9 kph at 1).	16 km Low: scattered Mid: broken High: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	6° C	Light rain .	Light winds from the SW (19 kph at 230).	16 km Low: scattered Mid: broken High: overcast
Snohomish 49 km NW 196m alt. 1 hour ago	4° C	Dry	Calm (2 kph at 5).
SHIP6111 51 km W 15m alt. 3 hours ago				- km
SHIP7295 51 km W 15m alt. 3 hours ago				- 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.