– Lat/Long: 47.51° N 121.74° W

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

Issued: 4 am Sun 14 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 27°C on Sun 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 11°C on Fri night). Wind will be generally light.
	Sunday 14			Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	some clouds	some clouds	clear	clear	cloudy	rain shwrs	rain shwrs	clear	clear	clear	some clouds	cloudy	some clouds	some clouds	clear	clear
km/h	NW	NW	NE	NW	W	SSW	SW	WNW	E	NW	NW	NE	WNW	NW	ENE	WNW	NW	SW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	0.1	0.1	—	—	—	—	—	—	—	—	—
max °C	25	27	23	25	27	23	15	18	15	16	20	18	20	22	19	21	24	22
min °C	21	27	19	22	26	13	14	17	9	12	19	13	17	22	16	18	23	11
chill °C	21	27	19	22	26	12	13	17	9	12	19	13	17	22	16	18	23	11

Freezing level m	4050	4250	4500	4450	4450	4250	4100	3800	3900	4000	4200	4450	4350	4400	4400	4200	4200	4100
Cloud base (m)	8900			5800	5100		800	900	1750				7150	6500	5550	9000

	5:09	—	—	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 24°C on Fri afternoon, 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. 53 minutes ago	12° C	Dry	Calm (0 kph at 315).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	7° C	-	Calm (0 kph at 328).
Renton 30 km WSW 160m alt. 2 hours ago	14° C	Dry	Calm (0 kph at 20).
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (0 kph at 0).
Grotto wx 35 km NE 321m alt. 1 hour ago	14° C	Dry	Calm (3 kph at 50).
Renton Airport 36 km WSW 218m alt. 3 hours ago	16° C	Clear	Light winds from the SSE (7 kph at 160).	16 km
Grotto wx 39 km NE 1101m alt. 49 minutes ago	10° C	Dry	Calm (0 kph at 352).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 153).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	14° C	Clear	Calm (0 kph at 0).	16 km
Woodinville 43 km WNW 137.2m alt. 1 hour ago	5° C	Dry	Calm (0 kph at 285).

* 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.