– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Fri 28 Nov Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Fri 28 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Freeze-thaw conditions (max 6°C on Fri night, min -1°C on Sat afternoon). Wind will be generally light.									Days 4–6 Weather Summary A dusting of new snow. Freeze-thaw conditions (max 2°C on Mon morning, min -1°C on Tue afternoon). Wind will be generally light.
	Friday 28			Saturday 29			Sunday 30			Monday 1			Tuesday 2			Wednesday 3
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

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

Freezing level (m)	1850	2050	2500	1900	1350	1100	1450	1550	1850	3150	2000	1200	1250	1100	1100	1250	1250	1200
Cloud base (m)	500	650	5950		2450	700	7000	6150	3050	2450	1950	500	450	450	700	650	1900	450

	7:30	—	—	7:31	—	—	7:31	—	—	7:33	—	—	7:35	—	—	7:35	—	—
	—	4:19	—	—	4:17	—	—	4:17	—	—	4:16	—	—	4:16	—	—	4:16	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Freeze-thaw conditions (max 6°C on Fri night, min -1°C on Sat afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

A dusting of new snow. Freeze-thaw conditions (max 2°C on Mon morning, min -1°C on Tue afternoon). Wind will be generally light.

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 5 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 49 minutes ago	10° C	Dry	Calm (0 kph at 227).
Black Diamond 32 km SSW 192m alt. 56 minutes ago		-	Calm (2 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	9° C	Dry and partly cloudy.	Light winds from the N (11 kph at 350).	16 km Low: scattered
Auburn 39 km SW 119m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 194).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	Dry and cloudy.	Calm (0 kph at 0).	0.0 km High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	9° C	Dry and partly cloudy.	Light winds from the N (6 kph at 1).	16 km Low: scattered
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	8° C	Dry and partly cloudy.	Light winds from the NNE (17 kph at 30).	16 km Low: few Mid: scattered
Snohomish 49 km NW 196m alt. 44 minutes ago	9° C	Dry	Wind obs. (16 kph from 53 degs) was rejected.
Seattle 49 km WSW 100m alt. 1 hour ago	13° C	-	Light winds from the N (13 kph at 355).
SHIP8574 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.