– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Fri 26 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Fri 26 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary A moderate fall of snow, heaviest on Fri night. Freeze-thaw conditions (max 4°C on Fri morning, min -1°C on Sat night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Mild temperatures (max 9°C on Wed morning, min 2°C on Mon afternoon). Wind will be generally light.
	Friday 26			Saturday 27			Sunday 28			Monday 29			Tuesday 30			Wednesday 31
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light snow	light snow	mod. snow	snow shwrs	cloudy	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	some clouds	cloudy	some clouds
km/h	SSW	SW	W	W	SSW	SSW	NNE	N	ENE	ENE	ENE	E	E	E	E	ESE	SSE	SE
See all weather maps
cm	2	1	8	1	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	4	1	0	0	0	0	2	2	1	5	4	2	7	5	6	9	7	6
min °C	1	1	0	0	0	-1	1	0	0	3	2	2	5	4	5	8	6	6
chill °C	-5	-5	-5	-2	-2	-1	1	0	0	3	2	2	5	3	3	7	5	5

Freezing level m	1050	600	450	500	500	400	750	800	0	2050	2150	2350	2700	2700	2900	3000	3000	3050
Cloud base (m)	1750	400	400	450	450	450	450	450	800	750	500	750	700	500		4700	400	4850

	7:52	—	—	7:54	—	—	7:54	—	—	7:54	—	—	7:54	—	—	7:54	—	—
	—	4:21	—	—	4:22	—	—	4:22	—	—	4:22	—	—	4:23	—	—	4:24	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A moderate fall of snow, heaviest on Fri night. Freeze-thaw conditions (max 4°C on Fri morning, min -1°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Mild temperatures (max 9°C on Wed morning, min 2°C on Mon afternoon). 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 5 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 348).
Black Diamond 32 km SSW 192m alt. 45 minutes ago		-	Calm (3 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	6° C	Dry and cloudy.	Light winds from the SSE (13 kph at 160).	16 km Low: broken Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago	17° C	Dry	Calm (0 kph at 92).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	Light snow.	Calm (0 kph at 0).	0 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	7° C	Dry and cloudy.	Moderate winds from the S (22 kph at 190).	16 km Low: broken Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	6° C	Dry and cloudy.	Fresh winds from the S (35 kph at 190).	16 km Low: broken Mid: overcast
Snohomish 49 km NW 196m alt. 43 minutes ago	5° C	Dry	Calm (5 kph at 241).
Seattle 49 km WSW 100m alt. 42 minutes ago		-	Light winds from the SSW (8 kph at 192).
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	7° C		Moderate winds from the SW (24 kph at 220).

* 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.