– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Sun 28 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sun 28 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 2mm), mostly falling on Sun afternoon. Mild temperatures (max 8°C on Mon afternoon, min 5°C on Sun morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Very mild (max 12°C on Fri afternoon, min 5°C on Wed morning). Wind will be generally light.
	Sunday 28			Monday 29			Tuesday 30			Wednesday 1			Thursday 2			Friday 3
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	light rain	light rain	light rain	cloudy	cloudy	rain shwrs	some clouds	cloudy	rain shwrs	some clouds	rain shwrs	rain shwrs	rain shwrs	some clouds	clear	clear
km/h	WNW	W	WNW	W	WNW	WNW	WSW	W	NW	SW	WSW	NW	W	NW	NW	NNW	NW	N
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.6	1.1	0.1	0.1	0.1	—	—	0.1	—	—	0.2	—	0.1	0.2	0.1	—	—	—
max °C	5	7	7	6	8	8	6	8	8	5	6	6	5	8	8	8	12	12
min °C	5	6	6	6	7	6	6	7	6	5	5	5	5	7	6	7	11	10
chill °C	2	4	3	4	6	5	4	6	5	3	3	4	4	6	4	5	9	9

Freezing level m	2800	3150	3400	3700	3750	3550	3450	3400	3300	3100	3050	3250	2950	2850	3000	3250	3500	3950
Cloud base (m)	450	500	600	500	500	700	500	750	1550	550	700	800	650	1500	1500	1700	9150

	5:11	—	—	5:11	—	—	5:11	—	—	5:13	—	—	5:13	—	—	5:13	—	—
	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 2mm), mostly falling on Sun afternoon. Mild temperatures (max 8°C on Mon afternoon, min 5°C on Sun morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Very mild (max 12°C on Fri afternoon, min 5°C on Wed 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
Snoqualmie Pass 30 km ESE 824m alt. 2 hours ago	12° C	-	Calm (0 kph at 100).
Renton Airport 36 km WSW 218m alt. 2 hours ago	18° C	Dry and partly cloudy.	Light winds from the SW (15 kph at 230).	16 km Low: broken Mid: broken
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	7° C	Mist -.	Wind obs. (11 kph from 1 degs) was rejected.	5 km Low: broken Mid: overcast
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	18° C	Dry and partly cloudy.	Light winds from the N (7 kph at 1).	16 km Low: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	19° C	Dry and partly cloudy.	Moderate winds from the S (22 kph at 190).	16 km Low: scattered Mid: scattered
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	16° C		Light winds from the SSE (9 kph at 160).
BUOY-TCNW1 57 km SW 3m alt. 1 hour ago
BUOY-TCMW1 57 km SW 3m alt. 1 hour ago	17° C		Moderate winds from the W (21 kph at 280).
BUOY-46120 57 km W 3m alt. 2 hours ago	16° C		Calm (4 kph at 220).
SHIP7528 60 km SSW 3m alt. 2 hours ago	20° C

* 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.