– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Tue 16 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Tue 16 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Warm (max 23°C on Thu afternoon, min 9°C on Tue night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 25°C on Mon morning, min 11°C on Fri night). Wind will be generally light.
	Tue 16		Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	clear	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear
km/h	WNW	ENE	NW	NW	NE	NW	WNW	ESE	W	W	SSW	W	NW	E	WNW	NW	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	17	16	15	20	17	20	23	20	21	22	20	16	21	19	21	24	22
min °C	16	9	12	18	11	16	22	16	18	22	11	13	19	13	17	24	17
chill °C	16	9	12	18	11	16	22	16	18	22	11	13	19	13	17	24	17

Freezing level m	3700	3950	3700	3750	4100	4150	4250	4200	4050	4050	3900	3900	3900	3850	3750	4000	4100
Cloud base (m)	850	1800						6450	4700	5000

	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	9:06	—	—	9:06	—	—	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 23°C on Thu afternoon, min 9°C on Tue night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 25°C on Mon morning, min 11°C on Fri 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. 2 hours ago	22° C	Dry	Calm (0 kph at 146).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	19° C	-	Calm (0 kph at 222).
Renton 30 km WSW 160m alt. 51 minutes ago	21° C	Dry	Calm (5 kph at 6).
Black Diamond 32 km SSW 192m alt. 52 minutes ago		-	Wind obs. (10 kph from 298 degs) was rejected.
Grotto wx 35 km NE 321m alt. 34 minutes ago	22° C	Dry	Light winds from the W (14 kph at 262).
Renton Airport 36 km WSW 218m alt. 2 hours ago	23° C	Dry and partly cloudy.	Moderate winds from the NNW (20 kph at 330).	16 km Low: broken
Grotto wx 39 km NE 1101m alt. 29 minutes ago	12° C	Dry	Calm (3 kph at 53).
Auburn 39 km SW 119m alt. 47 minutes ago	29° C	Dry	Calm (0 kph at 70).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	15° C	-	Light winds from the WSW (11 kph at 240).	16 km Low: few
Woodinville 43 km WNW 137.2m alt. 30 minutes ago	20° C	Dry	Wind obs. (13 kph from 274 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.