– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sat 11 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sat 11 Jul 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 23°C on Mon afternoon, min 9°C on Sat night). Wind will be generally light.											Days 5–7 Weather Summary Some drizzle, heaviest during Thu night. Warm (max 30°C on Thu afternoon, min 16°C on Tue night). Wind will be generally light.
	Sat 11		Sunday 12			Monday 13			Tuesday 14			Wednesday 15			Thursday 16
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	rain shwrs	rain shwrs	rain shwrs
km/h	W	SW	W	WNW	ENE	WNW	NW	ESE	WNW	NW	E	NW	NW	ENE	ESE	W	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	0.1	—	—	—	—	—	—	—	—	—	—	—	—	0.1	0.2	1.4
max °C	20	18	15	20	16	20	23	20	21	24	21	23	26	23	27	30	26
min °C	19	9	11	18	11	15	22	14	17	23	16	19	26	20	24	29	16
chill °C	19	9	11	18	11	15	22	14	17	23	16	19	26	20	24	29	16

Freezing level m	3300	2850	3400	3600	3800	3950	4100	4150	4300	4400	4300	4250	4400	4550	4700	4850	4800
Cloud base (m)	2000	600					8750				6550					5450

	—	—	5:20	—	—	5:22	—	—	5:22	—	—	5:24	—	—	5:24	—	—
	—	9:02	—	—	9:01	—	—	9:00	—	—	9:00	—	—	9:00	—	—	8:59

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 23°C on Mon afternoon, min 9°C on Sat night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Some drizzle, heaviest during Thu night. Warm (max 30°C on Thu afternoon, min 16°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	22° C	Dry	Calm (0 kph at 343).
Snoqualmie Pass 30 km ESE 824m alt. 29 minutes ago	19° C	-	Calm (0 kph at 277).
Renton 30 km WSW 160m alt. 23 minutes ago	24° C	Dry	Calm (0 kph at 312).
Grotto wx 35 km NE 321m alt. 1 hour ago	23° C	Dry	Light winds from the WSW (10 kph at 255).
Renton Airport 36 km WSW 218m alt. 2 hours ago	24° C	-	Wind obs. (11 kph from 1 degs) was rejected.	16 km Low: few
Grotto wx 39 km NE 1101m alt. 2 hours ago	16° C	Dry	Calm (3 kph at 321).
Auburn 39 km SW 119m alt. 1 hour ago		-	Calm (0 kph at 179).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	15° C	Dry and partly cloudy.	Wind obs. (6 kph from 1 degs) was rejected.	16 km Low: scattered
Woodinville 43 km WNW 137.2m alt. 27 minutes ago	22° C	Dry	Light winds from the W (14 kph at 281).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	24° C	Dry and partly cloudy.	Light winds from the N (9 kph at 1).	16 km Low: few Mid: scattered

* 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.