– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 pm Wed 03 Dec Local Time
Updates in:
hr min s
Update imminent

Issued: 9 pm Wed 03 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 50mm), heaviest during Thu morning. Mild temperatures (max 9°C on Fri morning, min 4°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the WSW by Fri night).										Days 5–7 Weather Summary Heavy rain (total 56mm), heaviest during Sun morning. Very mild (max 10°C on Mon night, min 4°C on Tue afternoon). Winds increasing (calm on Sun night, fresh winds from the WSW by Mon night).
		Thursday 4			Friday 5			Saturday 6			Sunday 7			Monday 8			Tuesday 9
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	mod. rain	mod. rain	mod. rain	mod. rain	light rain	mod. rain	light rain	light rain	mod. rain	heavy rain	rain shwrs	rain shwrs	rain shwrs	heavy rain	mod. rain	light rain	mod. rain	light snow
km/h	SW	SSW	W	SW	WSW	WSW	WSW	SW	WSW	SW	S	WSW	SW	SSW	S	WSW	WSW	WSW	WSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1
mm	1.9	10	6	8	10	3	6	0.9	5	6	14	4	1	0.4	11	8	4	7	10
max°C	4	5	5	7	9	8	6	6	6	6	7	8	5	6	7	10	6	5	4
min°C	4	4	5	6	9	7	6	6	6	6	6	7	5	6	6	6	5	4	2
chill°C	4	4	5	5	6	2	1	2	3	3	3	3	1	4	3	2	0	0	-2

Freezing level (m)	1550	1350	1550	1900	2350	1850	1450	1300	1400	1450	2000	1700	1200	1400	2250	1450	1350	1200	1050
Cloud base (m)	450	450	400	400	400	400	400	450	400	400	400	450	700	650	700	400	400	400	400

	—	7:37	—	—	7:37	—	—	7:39	—	—	7:39	—	—	7:41	—	—	7:41	—	—
	—	—	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 50mm), heaviest during Thu morning. Mild temperatures (max 9°C on Fri morning, min 4°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the WSW by Fri night).

Mount Si Weather (Days 3-6):

Heavy rain (total 56mm), heaviest during Sun morning. Very mild (max 10°C on Mon night, min 4°C on Tue afternoon). Winds increasing (calm on Sun night, fresh winds from the WSW by Mon 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. 49 minutes ago	5° C	Dry	Calm (0 kph at 215).
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	7° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Auburn 39 km SW 119m alt. 53 minutes ago	1° C	-	Calm (0 kph at 94).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-1° C	Fog freezing -.	Calm (0 kph at 0).	1 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	7° C	Dry and partly cloudy.	Light winds from the SE (9 kph at 140).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	7° C	Dry and cloudy.	Light winds from the SSE (9 kph at 160).	16 km Low: overcast
Snohomish 49 km NW 196m alt. 2 hours ago	5° C	Dry	Calm (0 kph at 103).
Seattle 49 km WSW 100m alt. 3 hours ago	7° C	-
BUOY-WPOW1 55 km W 3m alt. 56 minutes ago	8° C		Light winds from the SSW (17 kph at 210).

* 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.