– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Mon 30 Mar Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Mon 30 Mar Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary A dusting of snow giving way to moderate rain (total 16mm) heaviest on Thu morning. Mild temperatures (max 8°C on Tue afternoon, min 1°C on Mon night). Wind will be generally light.											Days 5–7 Weather Summary Light rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 13°C on Sun morning, min 3°C on Thu night). Wind will be generally light.
	Mon 30		Tuesday 31			Wednesday 1			Thursday 2			Friday 3			Saturday 4
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	cloudy	some clouds	light rain	light rain	mod. rain	light rain	light snow	rain shwrs	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	some clouds
km/h	N	ESE	SSE	WNW	SE	ESE	SW	SW	WNW	WNW	SW	W	NNW	ENE	NNW	NNW	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	1	—	—	—	—	—	—	—	—
mm	—	—	—	—	1.3	1.8	6	3	4	1.3	0.5	0.2	0.1	—	—	—	—
max °C	5	1	6	8	6	5	6	3	2	5	4	4	9	5	9	12	8
min °C	4	1	3	8	3	4	5	2	2	4	3	3	7	3	5	11	6
chill °C	4	0	2	8	1	1	3	2	0	3	2	3	7	3	5	10	6

Freezing level m	1150	1150	1400	1500	1150	1300	1300	900	800	1150	1050	1100	1450	1700	2050	2200	2750
Cloud base (m)	900	400	3950		2050	500	400	400	450	500	450	500	700	1800	8150		6500

	—	—	6:48	—	—	6:46	—	—	6:43	—	—	6:41	—	—	6:39	—	—
	7:32	—	—	7:34	—	—	7:36	—	—	7:37	—	—	7:38	—	—	7:39	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: A dusting of snow giving way to moderate rain (total 16mm) heaviest on Thu morning. Mild temperatures (max 8°C on Tue afternoon, min 1°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 13°C on Sun morning, min 3°C on Thu night). 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. 1 hour ago	7° C	Dry	Calm (0 kph at 329).
Renton 30 km WSW 160m alt. 51 minutes ago	9° C	-	Calm (3 kph at 339).
Black Diamond 32 km SSW 192m alt. 35 minutes ago		-	Wind obs. (6 kph from 360 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Clear	Moderate winds from the NNW (22 kph at 330).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	22° C	Dry	Calm (0 kph at 214).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	3° C	Clear	Calm (0 kph at 0).	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	10° C	Clear	Wind obs. (13 kph from 310 degs) was rejected.	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	10° C	Dry and partly cloudy.	Light winds from the NNW (15 kph at 330).	16 km Low: few Mid: scattered
Snohomish 49 km NW 196m alt. 44 minutes ago	9° C	Dry	Calm (5 kph at 270).
Seattle 49 km WSW 100m alt. 3 hours ago		-	Wind obs. (8 kph from 192 degs) was rejected.

* 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.