– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 9 am Wed 25 Feb Local Time
Updates in:
hr min s
Update imminent

Issued: 9 am Wed 25 Feb Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Temperatures will be below freezing (max -1°C on Thu morning, min -3°C on Wed morning). Winds decreasing (fresh winds from the WSW on Wed night, calm by Fri night).									Days 4–6 Weather Summary Mostly dry. Mild temperatures (max 6°C on Mon night, min 1°C on Sat morning). Wind will be generally light.
	Wednesday 25			Thursday 26			Friday 27			Saturday 28			Sunday 1			Monday 2
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	cloudy	cloudy	some clouds	cloudy	cloudy	cloudy	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	cloudy
km/h	SW	WSW	WSW	SW	WSW	SW	SW	WSW	W	N	NE	WNW	SSW	NW	N	NNW	NNW	N
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	-3	-2	-2	-1	-1	-2	-1	-1	-1	1	3	2	4	5	4	5	5	6
min °C	-3	-3	-3	-3	-1	-2	-2	-1	-2	1	2	2	3	4	4	5	4	4
chill °C	-8	-10	-10	-10	-8	-9	-8	-6	-5	-1	0	2	3	3	1	2	0	1

Freezing level m	850	1000	900	950	1200	1050	1000	1150	950	1550	1650	2150	2050	2250	2300	2350	2350	2500
Cloud base (m)	650	500	450	500	550	650	700	650	650	400	800	8900						6800

	6:54	—	—	6:52	—	—	6:50	—	—	6:48	—	—	6:47	—	—	6:45	—	—
	—	5:45	—	—	5:46	—	—	5:49	—	—	5:50	—	—	5:52	—	—	5:52	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Temperatures will be below freezing (max -1°C on Thu morning, min -3°C on Wed morning). Winds decreasing (fresh winds from the WSW on Wed night, calm by Fri night).

Mount Si Weather (Days 3-6):

Mostly dry. Mild temperatures (max 6°C on Mon night, min 1°C on Sat morning). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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	8° C	Dry	Calm (0 kph at 350).
Black Diamond 32 km SSW 192m alt. 50 minutes ago		-	Wind obs. (10 kph from 352 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	11° C	Dry and cloudy.	Light winds from the S (17 kph at 190).	16 km Low: few Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago		-	Wind obs. (10 kph from 24 degs) was rejected.
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	-2° C	Light snow.	Light winds from the W.(Wind varies from 210 to 320 degs) (13 kph at 270).	1 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	11° C	Dry and partly cloudy.	Light winds from the S (13 kph at 190).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	10° C	Dry and partly cloudy.	Moderate winds from the SSW (24 kph at 200).	16 km Low: scattered Mid: broken
Snohomish 49 km NW 196m alt. 29 minutes ago	9° C	Dry	Light winds from the SSW (16 kph at 193).
Seattle 49 km WSW 100m alt. 2 hours ago	19° C	-	Wind obs. (13 kph from 162 degs) was rejected.
SHIP7994 50 km WSW 15m alt. 2 hours ago				- 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.