– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Sun 07 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Sun 07 Dec Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 76mm), heaviest during Mon night. Very mild (max 11°C on Mon afternoon, min 4°C on Mon night). Mainly strong winds.											Days 5–7 Weather Summary Heavy rain (total 37mm), heaviest during Wed afternoon. Very mild (max 10°C on Fri morning, min 6°C on Wed afternoon). Wind will be generally light.
	Sun 7		Monday 8			Tuesday 9			Wednesday 10			Thursday 11			Friday 12
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light rain	heavy rain	mod. rain	heavy rain	some clouds	light rain	heavy rain	heavy rain	mod. rain	mod. rain	light rain	mod. rain	light rain	light rain	light rain	light rain
km/h	WSW	SW	SSW	WSW	W	W	SSE	WSW	W	W	SW	SW	WSW	WSW	WSW	WSW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	3	3	12	9	26	—	0.8	11	12	10	7	1.7	6	5	2	3	3
max°C	8	8	9	11	11	7	7	11	9	6	7	8	8	9	10	10	9
min°C	7	7	8	11	4	6	6	8	7	6	6	7	8	8	10	9	8
chill°C	4	4	5	8	4	6	4	5	5	5	4	5	7	7	8	6	6

Freezing level (m)	1700	1550	1950	2450	2050	1450	1950	2650	2100	1750	1550	1800	2050	2400	2350	2250	2250
Cloud base (m)	450	600	800	400	400	600	1750	400	400	400	450	450	450	450	400	400	400

	—	—	7:41	—	—	7:41	—	—	7:43	—	—	7:43	—	—	7:45	—	—
	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 76mm), heaviest during Mon night. Very mild (max 11°C on Mon afternoon, min 4°C on Mon night). Mainly strong winds.

Mount Si Weather (Days 3-6):

Heavy rain (total 37mm), heaviest during Wed afternoon. Very mild (max 10°C on Fri morning, min 6°C on Wed 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. 52 minutes ago	7° C	Dry	Calm (0 kph at 162).
Black Diamond 32 km SSW 192m alt. 49 minutes ago	8° C	Dry	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Dry and cloudy.	Light winds from the S (17 kph at 180).	16 km Low: overcast
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 355).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	2° C	Dry and cloudy.	Light winds from the W.(Wind varies from 190 to 310 degs) (13 kph at 270).	16 km Low: scattered Mid: broken High: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	12° C	Dry and partly cloudy.	Light winds from the S.(Wind varies from 160 to 230 degs) (19 kph at 190).	16 km Low: broken Mid: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	10° C	Dry and partly cloudy.	Moderate winds from the S (22 kph at 180).	16 km Low: few Mid: broken High: broken
Snohomish 49 km NW 196m alt. 31 minutes ago	10° C	Dry	Light winds from the SSW (6 kph at 207).
Seattle 49 km WSW 100m alt. 1 hour ago	13° C	-
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	12° C		Fresh winds from the S (35 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.