– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Fri 12 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Fri 12 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 12°C on Fri morning). Wind will be generally light.									Days 4–6 Weather Summary Some drizzle, heaviest during Tue afternoon. Warm (max 26°C on Mon afternoon, min 9°C on Tue night). Wind will be generally light.
	Friday 12			Saturday 13			Sunday 14			Monday 15			Tuesday 16			Wednesday 17
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	clear	clear	rain shwrs	rain shwrs	clear	clear	clear
km/h	NW	NW	E	NW	NW	ESE	NW	NW	E	WNW	WNW	SSW	WSW	WNW	NE	WNW	NW	NNE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	0.9	0.1	—	—	—
max °C	15	19	16	22	24	20	25	27	23	25	26	22	19	20	16	16	21	18
min °C	12	18	13	18	24	17	21	27	20	22	26	15	17	18	9	12	19	12
chill °C	12	18	13	18	24	17	21	27	20	22	26	15	17	18	9	12	19	12

Freezing level m	3150	3350	3450	3550	3900	3850	4000	4300	4600	4550	4550	4550	4050	3850	4200	4200	4350	4500
Cloud base (m)					9100	8650	9250			5950	8150			1500

	5:09	—	—	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 12°C on Fri morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Tue afternoon. Warm (max 26°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	23° C	Dry	Calm (0 kph at 259).
Snoqualmie Pass 30 km ESE 824m alt. 1 hour ago	21° C	-	Calm (0 kph at 254).
Renton 30 km WSW 160m alt. 1 hour ago	22° C	Dry	Calm (5 kph at 347).
Black Diamond 32 km SSW 192m alt. 56 minutes ago		-	Wind obs. (8 kph from 267 degs) was rejected.
Grotto wx 35 km NE 321m alt. 2 hours ago	21° C	Dry	Light winds from the W (11 kph at 264).
Renton Airport 36 km WSW 218m alt. 3 hours ago	21° C	Clear	Light winds from the NNW (15 kph at 330).	16 km
Grotto wx 39 km NE 1101m alt. 51 minutes ago	18° C	Dry	Calm (3 kph at 115).
Auburn 39 km SW 119m alt. 57 minutes ago		-	Calm (2 kph at 253).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	14° C	-	Light winds from the N (9 kph at 1).	16 km Low: few
Woodinville 43 km WNW 137.2m alt. 48 minutes ago	22° C	Dry	Wind obs. (16 kph from 231 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.