– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Fri 28 Nov Local Time
Updates in:
hr min s
Update imminent

Issued: 3 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 5°C on Fri morning, 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 3°C on Mon morning, min -1°C on Tue night). 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	cloudy	clear	clear	clear	some clouds	some clouds	cloudy	light snow	some clouds	cloudy	cloudy	cloudy	cloudy	cloudy
km/h	SE	SSW	SE	S	WSW	E	SSW	WNW	NNW	NNW	WNW	SW	WNW	NW	WSW	WSW	WSW	NNW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	1	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max°C	5	3	5	3	0	0	1	1	1	3	2	2	0	0	0	0	0	2
min°C	3	3	3	2	-1	-1	1	1	1	2	1	1	0	0	-1	0	0	0
chill°C	1	3	3	-1	-3	-1	1	0	-1	0	-1	-3	-3	-2	-4	-2	-2	-2

Freezing level (m)	1850	2000	2450	1850	1250	1050	1350	1450	1800	3200	1900	1500	1350	1300	1200	1250	1200	1450
Cloud base (m)	450	650	6250	450	2150	550		700	2750	2200	2100	800	450	600	450	550	500	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 5°C on Fri morning, 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 3°C on Mon morning, min -1°C on Tue night). 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. 46 minutes ago	3° C	Dry	Calm (0 kph at 242).
Black Diamond 32 km SSW 192m alt. 39 minutes ago	10° C	Dry	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	9° C	Dry and cloudy.	Light winds from the NNW (11 kph at 340).	16 km Low: broken Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago	-4° C	-	Calm (0 kph at 55).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	Mist -.	Calm (0 kph at 0).	6 km Low: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	8° C	Dry and cloudy.	Light winds from the N (6 kph at 0).	16 km Low: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	7° C	Dry and cloudy.	Light winds from the N (17 kph at 10).	16 km Low: few Mid: overcast
Snohomish 49 km NW 196m alt. 59 minutes ago	8° C	Dry	Wind obs. (21 kph from 15 degs) was rejected.
Seattle 49 km WSW 100m alt. 42 minutes ago	4° C	-
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	9° C		Fresh winds from the N (35 kph at 0).

* 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.