– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Tue 16 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Tue 16 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 23°C on Thu afternoon, min 9°C on Tue night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 24°C on Fri afternoon, min 12°C on Fri night). Wind will be generally light.
	Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	rain shwrs	clear	some clouds	clear	clear	clear	clear	some clouds	some clouds	clear	clear	clear	clear	clear	clear	clear	clear
km/h	WSW	WNW	NE	NW	NW	NE	NW	NW	ESE	W	WNW	SSW	W	WNW	ENE	NW	NW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	0.3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	17	17	16	14	19	17	20	23	20	22	24	22	17	22	20	20	24	22
min °C	16	16	9	11	18	12	16	22	17	19	24	12	15	20	13	16	23	18
chill °C	16	16	9	11	18	12	16	22	17	19	24	12	15	20	13	16	23	18

Freezing level m	4050	3900	4000	3700	3850	4150	4250	4350	4300	4200	4150	4000	3950	4000	4050	3900	4050	4000
Cloud base (m)	1550	750	1850	700					6200	4950	6150							9550

	5:09	—	—	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 24°C on Fri afternoon, min 12°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. 27 minutes ago	21° C	Dry	Calm (0 kph at 354).
Snoqualmie Pass 30 km ESE 824m alt. 27 minutes ago	23° C	-	Calm (5 kph at 217).
Renton 30 km WSW 160m alt. 29 minutes ago	22° C	Dry	Calm (5 kph at 119).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Light winds from the NW (8 kph at 313).
Grotto wx 35 km NE 321m alt. 2 hours ago	21° C	Dry	Light winds from the W (16 kph at 264).
Renton Airport 36 km WSW 218m alt. 2 hours ago	21° C	Clear	Light winds from the SW (9 kph at 220).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	17° C	Dry	Calm (3 kph at 110).
Auburn 39 km SW 119m alt. 55 minutes ago		-	Calm (5 kph at 38).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	16° C	Dry and partly cloudy.	Wind obs. (7 kph from 1 degs) was rejected.	16 km Low: broken
Woodinville 43 km WNW 137.2m alt. 2 hours ago	22° C	Dry	Light winds from the SW (8 kph at 233).

* 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.