– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 3 pm Tue 03 Mar Local Time
Updates in:
hr min s
Update imminent

Issued: 3 pm Tue 03 Mar Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Heavy rain (total 43mm), heaviest during Tue afternoon. Mild temperatures (max 7°C on Tue afternoon, min 2°C on Wed night). Wind will be generally light.											Days 5–7 Weather Summary Heavy rain (total 25mm), mostly on Sun morning. Becoming colder with a light covering of snow, mostly falling on Mon morning. Freeze-thaw conditions (max 8°C on Sat night, min 0°C on Sun night). Wind will be generally light.
	Tue 3		Wednesday 4			Thursday 5			Friday 6			Saturday 7			Sunday 8
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	mod. rain	heavy rain	light rain	rain shwrs	heavy rain	light rain	light rain	light rain	rain shwrs	rain shwrs	light rain	light rain	light rain	light rain	heavy rain	light rain	light snow
km/h	SW	S	SW	WNW	WSW	SW	WNW	WNW	NW	NW	SSE	SW	WSW	SW	WSW	SW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2
mm	6	13	4	5	11	2	1	1.3	0.2	0.1	1	1	0.5	4	12	4	1.7
max °C	7	7	7	7	5	3	4	3	6	7	6	7	7	8	8	8	4
min °C	7	6	6	5	2	2	3	3	5	5	5	6	7	7	8	7	0
chill °C	4	3	4	3	-1	0	3	1	5	5	5	5	6	5	5	3	-5

Freezing level m	1600	1500	1350	1500	1000	800	1000	1000	1100	1350	1600	2300	2450	2150	2100	1850	800
Cloud base (m)	400	400	450	700	450	450	450	450	500	700	700	450	450	450	400	400	500

	—	—	6:41	—	—	6:39	—	—	6:37	—	—	6:35	—	—	7:33	—	—
	5:54	—	—	5:55	—	—	5:58	—	—	5:59	—	—	6:00	—	—	7:01	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 43mm), heaviest during Tue afternoon. Mild temperatures (max 7°C on Tue afternoon, min 2°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Heavy rain (total 25mm), mostly on Sun morning. Becoming colder with a light covering of snow, mostly falling on Mon morning. Freeze-thaw conditions (max 8°C on Sat night, min 0°C on Sun 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. 41 minutes ago	11° C	Dry	Calm (0 kph at 30).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: scattered Mid: broken High: broken
Auburn 39 km SW 119m alt. 1 hour ago	12° C	Dry	Calm (0 kph at 19).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	3° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: broken Mid: broken High: overcast
SHIP10288 42 km WSW 3m alt. 3 hours ago	11° C		Light winds from the S (8 kph at 190).
SHIP4715 42 km WSW 3m alt. 3 hours ago	11° C		Light winds from the S (8 kph at 190).
SHIP8253 42 km WSW 3m alt. 3 hours ago	11° C		Light winds from the S (8 kph at 190).
SHIP7369 42 km WSW 3m alt. 2 hours ago	11° C		Calm (5 kph at 190).
SHIP9700 42 km WSW 15m alt. 2 hours ago			Calm (6 kph at 190).	- 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.