– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Wed 22 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Wed 22 Jul Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Some drizzle, heaviest during Thu morning. Warm (max 33°C on Wed afternoon, min 14°C on Fri night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 23°C on Sun afternoon, min 13°C on Sat night). Wind will be generally light.
	Wed 22		Thursday 23			Friday 24			Saturday 25			Sunday 26			Monday 27
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	rain shwrs	light rain	rain shwrs	rain shwrs	clear	clear	clear	clear	rain shwrs	rain shwrs	clear	clear	some clouds	cloudy	clear	clear
Cloud base (m)	4650		450	600					800	1900	900		2350	3250	950	850
km/h	WNW	W	WSW	W	S	W	WNW	S	W	W	SSW	W	W	SSW	WSW	W	SSE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.1	0.2	0.4	0.2	0.1	—	—	—	—	0.1	0.3	—	—	—	—	—	—
max °C	33	27	17	20	19	22	26	23	18	21	16	19	23	19	15	21	19
min °C	32	17	17	19	16	18	25	14	16	18	13	15	22	13	14	19	13
chill °C	32	17	17	19	16	18	25	14	16	18	13	15	22	13	14	19	13

Freezing level m	4750	4700	4500	4400	4350	4250	4200	3900	3500	3150	3750	3700	3700	3250	3550	4000	3950

	—	—	5:33	—	—	5:33	—	—	5:35	—	—	5:35	—	—	5:37	—	—
	—	8:52	—	—	8:52	—	—	8:51	—	—	8:50	—	—	8:49	—	—	8:47

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Thu morning. Warm (max 33°C on Wed afternoon, min 14°C on Fri night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 23°C on Sun afternoon, min 13°C on Sat 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
Renton 30 km WSW 160m alt. 2 hours ago	29° C	Dry	Calm (0 kph at 19).
Renton Airport 36 km WSW 218m alt. 3 hours ago	31° C	Clear	Light winds from the NNW (17 kph at 330).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	27° C	Dry	Calm (0 kph at 342).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	26° C	Clear	Wind obs. (6 kph from 1 degs) was rejected.	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	30° C	Clear	Light winds from the NW (11 kph at 310).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	30° C	Dry and partly cloudy.	Light winds from the NNW (13 kph at 330).	16 km Low: scattered Mid: broken High: broken
BUOY-EBSW1 46 km W 3m alt. 2 hours ago
Snohomish 49 km NW 196m alt. 2 hours ago	28° C	Dry	Calm (2 kph at 232).
Seattle 49 km WSW 100m alt. 2 hours ago	29° C	-
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	27° C		Moderate winds from the NE (21 kph at 50).

* 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.