– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Wed 17 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Wed 17 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Warm (max 24°C on Fri afternoon, min 11°C on Wed night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 28°C on Mon afternoon, min 12°C on Sat night). Wind will be generally light.
	Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear
km/h	NW	NW	NE	NW	NW	ESE	W	WNW	SW	WSW	W	ENE	NW	NW	E	WNW	NW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	15	20	17	20	22	20	22	24	21	15	20	19	19	23	21	25	28	24
min °C	12	18	11	16	22	16	19	24	11	13	19	12	15	22	17	21	28	19
chill °C	12	18	11	16	22	16	19	24	10	12	19	12	15	22	17	21	28	19

Freezing level m	3750	3850	4150	4200	4250	4250	4100	4150	3950	3750	3800	3800	3550	3850	3850	3900	4250	4150
Cloud base (m)	750						4800	4750								8950	9150

	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	—	9:06	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 24°C on Fri afternoon, min 11°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 28°C on Mon afternoon, min 12°C on Sat 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	17° C	Dry	Calm (0 kph at 27).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	13° C	-	Calm (2 kph at 101).
Renton 30 km WSW 160m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 205).
Black Diamond 32 km SSW 192m alt. 57 minutes ago		-	Calm (2 kph at 164).
Grotto wx 35 km NE 321m alt. 2 hours ago	10° C	Dry	Calm (0 kph at 277).
Renton Airport 36 km WSW 218m alt. 2 hours ago	13° C	Clear	Light winds from the N (7 kph at 1).	16 km
Grotto wx 39 km NE 1101m alt. 36 minutes ago	11° C	Dry	Calm (2 kph at 119).
Auburn 39 km SW 119m alt. 2 hours ago		-	Calm (0 kph at 155).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	7° C	Dry and partly cloudy.	Wind obs. (7 kph from 200 degs) was rejected.	16 km Low: scattered
Woodinville 43 km WNW 137.2m alt. 2 hours ago	15° C	Dry	Wind obs. (8 kph from 293 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.