– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Mon 02 Mar Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Mon 02 Mar Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 34mm), heaviest during Tue night. Very mild (max 12°C on Mon morning, min 3°C on Wed night). Wind will be generally light.									Days 4–6 Weather Summary Heavy rain (total 31mm), heaviest during Fri night. Mild temperatures (max 7°C on Fri morning, min 3°C on Thu morning). Wind will be generally light.
	Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Friday 6			Saturday 7
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	rain shwrs	light rain	mod. rain	mod. rain	light rain	rain shwrs	mod. rain	light rain	light rain	light rain	light rain	light rain	heavy rain	mod. rain	light rain	light rain
km/h	W	WSW	SSE	SW	SW	SW	SW	W	NW	WSW	SW	NW	W	WSW	WSW	SW	SW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	0.2	3	5	10	2	4	9	1	2	3	0.2	0.6	12	5	3	3
max °C	12	12	8	8	7	7	7	7	5	3	3	4	7	7	7	7	7	7
min °C	10	8	7	8	7	6	7	6	3	3	3	3	6	6	6	7	7	4
chill °C	10	8	7	6	5	5	6	5	0	1	0	3	6	5	5	6	6	2

Freezing level m	2300	2300	2150	1800	1650	1600	1400	1450	1200	1000	1000	1100	1250	1400	1950	2300	2100	1500
Cloud base (m)	8950	6450	850	550	400	400	600	700	450	450	450	450	550	750	450	450	400	450

	6:45	—	—	6:43	—	—	6:41	—	—	6:39	—	—	6:37	—	—	6:35	—	—
	—	5:52	—	—	5:54	—	—	5:55	—	—	5:58	—	—	5:59	—	—	6:00	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 34mm), heaviest during Tue night. Very mild (max 12°C on Mon morning, min 3°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 31mm), heaviest during Fri night. Mild temperatures (max 7°C on Fri morning, min 3°C on Thu morning). 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 10 closest weather stations

Weather Station	Temp.	Weather	Wind	Cloud Visibility Cloud / Visibility
Harman Heights wx 6 km SSW 251m alt. 30 minutes ago	15° C	Dry	Calm (0 kph at 329).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Wind obs. (11 kph from 232 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	13° C	Clear	Light winds from the SSE (9 kph at 150).	16 km
Auburn 39 km SW 119m alt. 37 minutes ago		-	Calm (3 kph at 243).
Stampede Pass Airport 40 km SE 628m alt. 50 minutes ago	9° C	Clear	Wind obs. (11 kph from 1 degs) was rejected.	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	13° C	Clear	Light winds from the WSW (7 kph at 240).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	12° C	Dry and partly cloudy.	Light winds from the S (11 kph at 190).	16 km Low: scattered
Snohomish 49 km NW 196m alt. 1 hour ago	13° C	Dry	Calm (5 kph at 263).
Seattle 49 km WSW 100m alt. 2 hours ago	21° C	-	Wind obs. (16 kph from 145 degs) was rejected.
SHIP1798 54 km W 15m alt. 3 hours ago			Light winds from the SW (10 kph at 220).	- km

* 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.