– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Mon 01 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Mon 01 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 5mm), mostly falling on Mon night. Mild temperatures (max 5°C on Mon afternoon, min 2°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 54mm), heaviest during Fri afternoon. Very mild (max 10°C on Thu night, min 5°C on Thu morning). Winds increasing (calm on Thu morning, fresh winds from the WSW by Thu night).
	Monday 1			Tuesday 2			Wednesday 3			Thursday 4			Friday 5			Saturday 6
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	light rain	rain shwrs	rain shwrs	some clouds	cloudy	some clouds	some clouds	light rain	light rain	heavy rain	mod. rain	heavy rain	mod. rain	light rain	light rain	light rain
km/h	ENE	WNW	WSW	NNW	NW	ESE	WNW	WNW	NNE	S	SW	WSW	WSW	WSW	WSW	WSW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.1	0.5	4	0.8	0.1	—	—	—	—	3	5	13	8	12	8	3	1.6	0.6
max°C	4	5	4	4	4	3	4	3	4	5	6	10	8	8	7	6	6	5
min°C	3	4	3	4	4	2	4	3	3	5	5	7	8	8	6	6	5	5
chill°C	3	3	2	2	4	2	4	3	3	4	3	4	4	5	2	2	3	3

Freezing level (m)	1500	1850	1300	1200	1150	1250	1350	1050	1250	1850	1900	2550	1900	1800	1550	1350	1300	1150
Cloud base (m)	2150	850	450	450	450	650	550	1850	450	750	400	400	400	400	400	400	450	700

	7:33	—	—	7:35	—	—	7:35	—	—	7:37	—	—	7:37	—	—	7:39	—	—
	—	4:16	—	—	4:16	—	—	4:16	—	—	4:15	—	—	4:15	—	—	4:15	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 5mm), mostly falling on Mon night. Mild temperatures (max 5°C on Mon afternoon, min 2°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 54mm), heaviest during Fri afternoon. Very mild (max 10°C on Thu night, min 5°C on Thu morning). Winds increasing (calm on Thu morning, fresh winds from the WSW by Thu night).

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. 58 minutes ago	2° C	-	Calm (0 kph at 210).
Black Diamond 32 km SSW 192m alt. 39 minutes ago		-	Calm (3 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	3° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Auburn 39 km SW 119m alt. 2 hours ago	5° C	Dry	Calm (0 kph at 289).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: broken Mid: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	3° C	Dry and cloudy.	Calm (0 kph at 0).	13 km Low: few Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	3° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: few Mid: scattered High: overcast
Snohomish 49 km NW 196m alt. 1 hour ago	3° C	Dry	Calm (0 kph at 15).
Seattle 49 km WSW 100m alt. 2 hours ago	14° C	-	Calm (2 kph at 57).
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	5° C		Calm (5 kph at 30).

* 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.