– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Fri 12 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Fri 12 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 13°C on Fri night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 27°C on Mon afternoon, min 9°C on Tue night). Wind will be generally light.
	Fri 12		Saturday 13			Sunday 14			Monday 15			Tuesday 16			Wednesday 17
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	some clouds	clear	clear	some clouds	some clouds	some clouds	clear	some clouds	rain shwrs	rain shwrs	clear	clear	clear
km/h	NW	E	NW	NW	ESE	NW	NW	E	WNW	NW	SSW	WSW	WNW	ENE	NW	NW	NE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	0.2	0.1	—	—	—
max °C	19	16	22	24	21	25	27	23	24	27	23	17	18	15	16	20	18
min °C	18	13	17	24	17	21	27	19	22	26	14	16	16	9	12	19	12
chill °C	18	13	17	24	17	21	27	19	22	26	14	16	16	9	12	19	12

Freezing level m	3450	3450	3550	3850	3850	4050	4350	4600	4450	4450	4150	4050	4050	4000	4050	4050	4200
Cloud base (m)	9550			9050	9150	8650			6050	4750		2400	650

	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—	5:09	—	—
	—	9:04	—	—	9:04	—	—	9:05	—	—	9:05	—	—	9:06	—	—	9:06

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 27°C on Sun afternoon, min 13°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 27°C on Mon afternoon, min 9°C on Tue 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	14° C	Dry	Calm (0 kph at 331).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	12° C	-	Calm (0 kph at 3).
Renton 30 km WSW 160m alt. 31 minutes ago	19° C	Dry	Calm (0 kph at 345).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Light winds from the N (8 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	16° C	Dry	Calm (2 kph at 95).
Renton Airport 36 km WSW 218m alt. 2 hours ago	22° C	Clear	Light winds from the NNW (13 kph at 340).	16 km
Grotto wx 39 km NE 1101m alt. 1 hour ago	10° C	Dry	Calm (0 kph at 315).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	13° C	Clear	Light winds from the N (9 kph at 1).	16 km
Woodinville 43 km WNW 137.2m alt. 55 minutes ago	17° C	Dry	Calm (5 kph at 316).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	23° C	Clear	Light winds from the N (6 kph at 1).	16 km

* 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.