– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 am Sat 06 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 am Sat 06 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 57mm), heaviest during Mon morning. Very mild (max 11°C on Mon afternoon, min 4°C on Mon night). Winds increasing (calm on Sat night, strong winds from the WSW by Mon afternoon).									Days 4–6 Weather Summary Heavy rain (total 25mm), heaviest during Tue afternoon. Very mild (max 10°C on Tue night, min 1°C on Wed night). Winds decreasing (strong winds from the WSW on Tue night, calm by Wed night).
	Saturday 6			Sunday 7			Monday 8			Tuesday 9			Wednesday 10			Thursday 11
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	light rain	mod. rain	rain shwrs	mod. rain	heavy rain	heavy rain	mod. rain	rain shwrs	light rain	mod. rain	rain shwrs	rain shwrs	some clouds	cloudy	light rain	heavy rain
km/h	SW	WSW	SW	SSE	WSW	SW	S	SW	SW	SSW	S	WSW	WSW	SW	SW	E	S	SSE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.9	2	2	7	4	9	13	11	8	0.2	5	5	1.3	0.8	—	—	0.1	12
max°C	6	6	6	6	8	7	8	11	6	7	9	10	4	3	2	5	4	6
min°C	6	6	5	6	7	6	7	11	4	5	5	3	3	2	1	3	4	3
chill°C	1	2	5	4	4	5	5	7	1	5	2	1	3	-1	1	3	4	1

Freezing level (m)	1300	1350	1350	1650	1700	1650	2150	2450	1250	1200	1800	1600	900	900	750	1150	1400	2500
Cloud base (m)	400	450	500	400	450	450	550	400	400	400	1500	400	450	550	550	500	2500	450

	7:39	—	—	7:39	—	—	7:41	—	—	7:41	—	—	7:43	—	—	7:43	—	—
	—	4:15	—	—	4:15	—	—	4:15	—	—	4:15	—	—	4:15	—	—	4:15	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 57mm), heaviest during Mon morning. Very mild (max 11°C on Mon afternoon, min 4°C on Mon night). Winds increasing (calm on Sat night, strong winds from the WSW by Mon afternoon).

Mount Si Weather (Days 3-6):

Heavy rain (total 25mm), heaviest during Tue afternoon. Very mild (max 10°C on Tue night, min 1°C on Wed night). Winds decreasing (strong winds from the WSW on Tue night, calm by Wed 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. 1 hour ago	8° C	Dry	Calm (0 kph at 220).
Black Diamond 32 km SSW 192m alt. 41 minutes ago	6° C	Dry	Calm (2 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Dry and cloudy.	Moderate winds from the S (20 kph at 180).	16 km Low: broken Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 209).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	1° C	Light rain .	Light winds from the N (7 kph at 1).	1 km Mid: broken High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	11° C	Dry and partly cloudy.	Moderate winds from the SSW (20 kph at 200).	16 km Low: scattered Mid: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	9° C	Dry and partly cloudy.	Fresh winds from the SSW (31 kph at 210).	16 km Low: broken Mid: broken
Snohomish 49 km NW 196m alt. 1 hour ago	10° C	Dry	Wind obs. (14 kph from 216 degs) was rejected.
Seattle 49 km WSW 100m alt. 1 hour ago	11° C	-
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	10° C		Moderate winds from the S (24 kph at 190).

* 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.