– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Sat 07 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Sat 07 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 4mm) at first, then becoming colder with a dusting of snow on Sat night. Freeze-thaw conditions (max 3°C on Sat night, min -3°C on Sun night). Mainly strong winds.										Days 5–7 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 3°C on Wed afternoon, min -4°C on Fri morning). Winds increasing (calm on Wed afternoon, strong winds from the SW by Thu afternoon).
		Sunday 8			Monday 9			Tuesday 10			Wednesday 11			Thursday 12			Friday 13
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	cloudy	some clouds	snow shwrs	light snow	some clouds	clear	some clouds	some clouds	clear	clear	clear	some clouds	some clouds	cloudy	light snow	some clouds	cloudy	snow shwrs
km/h	SW	WSW	W	SW	SW	SW	S	ESE	ESE	E	ESE	SSE	SW	SW	SW	WSW	SSW	SW	SW
See all weather maps
cm	1	—	—	1	2	—	—	—	—	—	—	—	—	—	—	4	—	—	1
mm	4	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	3	2	0	-2	-1	-1	1	3	2	2	2	3	1	0	0	0	-4	-3	-4
min °C	0	1	-2	-3	-2	-1	-1	2	2	2	2	2	-1	-1	-1	-3	-4	-3	-5
chill °C	-5	0	-6	-9	-9	-7	-4	-2	-2	-1	0	0	-7	-7	-9	-8	-9	-8	-13

Freezing level m	1450	1550	1250	850	1000	1150	1050	1700	1650	1750	1700	1750	1500	1150	1200	1150	750	950	600
Cloud base (m)	500		550	950	600	450	1550	6700	6150	400				1550	850	400	500	750	400

	—	7:22	—	—	7:20	—	—	7:20	—	—	7:18	—	—	7:16	—	—	7:15	—	—
	—	—	5:19	—	—	5:21	—	—	5:22	—	—	5:23	—	—	5:24	—	—	5:27	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 4mm) at first, then becoming colder with a dusting of snow on Sat night. Freeze-thaw conditions (max 3°C on Sat night, min -3°C on Sun night). Mainly strong winds.

Mount Si Weather (Days 3-6):

A dusting of new snow. Freeze-thaw conditions (max 3°C on Wed afternoon, min -4°C on Fri morning). Winds increasing (calm on Wed afternoon, strong winds from the SW by Thu afternoon).

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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	7° C	Dry	Calm (0 kph at 359).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Dry and cloudy.	Light winds from the S (9 kph at 170).	16 km Low: overcast
Auburn 39 km SW 119m alt. 2 hours ago	-1° C	-	Calm (0 kph at 196).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	3° C	Moderate rain .	Light winds from the W (9 kph at 280).	3 km Mid: broken High: broken
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	11° C	Dry and partly cloudy.	Light winds from the S (19 kph at 190).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	10° C	Dry and cloudy.	Moderate winds from the SSW.(Wind varies from 010 to 018 degs) (20 kph at 210).	16 km Low: few Mid: overcast
Snohomish 49 km NW 196m alt. 1 hour ago	8° C	Dry	Light winds from the SSW (10 kph at 213).
SHIP1131 54 km W 15m alt. 2 hours ago			Light winds from the SSE (10 kph at 160).	- km
SHIP5636 54 km W 15m alt. 2 hours ago			Light winds from the S (8 kph at 180).	- 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.