– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sun 14 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sun 14 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 27°C on Sun afternoon, min 9°C on Tue night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 25°C on Fri afternoon, min 13°C on Wed night). Wind will be generally light.
	Sun 14		Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	some clouds	clear	clear	some clouds	some clouds	clear	clear	clear	clear	cloudy	cloudy	some clouds	some clouds	clear	clear
km/h	NNW	ENE	NW	WNW	SSW	WSW	WNW	ENE	NW	NNW	E	NNW	WNW	ESE	WNW	NW	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	27	23	25	27	23	16	18	15	16	20	17	22	23	20	21	25	22
min °C	26	19	22	27	14	15	17	9	12	19	13	17	22	17	19	24	13
chill °C	26	19	22	27	14	14	17	9	12	19	13	17	22	17	19	24	13

Freezing level m	4300	4500	4450	4450	4200	4150	3950	3950	3950	4150	4550	4400	4400	4300	4200	4250	4200
Cloud base (m)			6050	4900		900	1500				9300	6600	5700	5600	5250

	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	9:05	—	—	9:05	—	—	9:06	—	—	9:06	—	—	9:07	—	—	9:07

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 27°C on Sun 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 Fri afternoon, min 13°C on Wed 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	21° C	Dry	Calm (0 kph at 335).
Snoqualmie Pass 30 km ESE 824m alt. 49 minutes ago	19° C	-	Calm (0 kph at 17).
Renton 30 km WSW 160m alt. 58 minutes ago	27° C	Dry	Calm (0 kph at 4).
Black Diamond 32 km SSW 192m alt. 2 hours ago	31° C	Dry	Calm (3 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	27° C	Dry	Calm (2 kph at 248).
Renton Airport 36 km WSW 218m alt. 2 hours ago	27° C	Clear	Light winds from the N (9 kph at 0).	16 km
Grotto wx 39 km NE 1101m alt. 2 hours ago	18° C	Dry	Calm (2 kph at 321).
Auburn 39 km SW 119m alt. 41 minutes ago	21° C	Dry	Calm (0 kph at 317).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	21° C	Clear	Wind obs. (6 kph from 320 degs) was rejected.	16 km
Woodinville 43 km WNW 137.2m alt. 2 hours ago	20° C	Dry	Calm (2 kph at 207).

* 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.