– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Sat 08 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Sat 08 Aug 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 25°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 2mm), mostly falling on Wed night. Warm (max 23°C on Tue afternoon, min 12°C on Wed night). Wind will be generally light.
	Saturday 8			Sunday 9			Monday 10			Tuesday 11			Wednesday 12			Thursday 13
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	clear	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	some clouds	light rain	light rain	light rain	rain shwrs	rain shwrs	clear
Cloud base (m)	6800	8600						9200					600	550	450	400
km/h	NNW	WNW	NNE	NW	NW	NNE	NW	NNW	NE	NW	NW	N	WNW	WSW	W	NW	NW	ENE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	0.1	0.3	1.3	0.2	0.1	—
max °C	22	25	21	19	22	18	18	22	18	19	23	19	15	17	16	13	20	17
min °C	19	24	13	16	22	12	14	21	14	16	22	14	15	16	12	12	17	13
chill °C	19	24	13	16	22	12	14	21	14	16	22	14	15	16	12	12	17	13

Freezing level m	4300	4200	4200	4150	4050	4050	4050	4150	4250	4150	4100	4050	3850	3800	3500	3550	3800	3950

	5:52	—	—	5:54	—	—	5:54	—	—	5:56	—	—	5:58	—	—	5:58	—	—
	—	—	8:30	—	—	8:29	—	—	8:27	—	—	8:25	—	—	8:23	—	—	8:22

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 25°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 2mm), mostly falling on Wed night. Warm (max 23°C on Tue afternoon, min 12°C on Wed 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. 37 minutes ago	27° C	Dry	Calm (5 kph at 228).
Black Diamond 32 km SSW 192m alt. 48 minutes ago		-	Wind obs. (8 kph from 123 degs) was rejected.
Renton Airport 36 km WSW 218m alt. 2 hours ago	23° C	-	Light winds from the N (9 kph at 0).	13 km
Auburn 39 km SW 119m alt. 52 minutes ago	39° C	Dry	Calm (2 kph at 275).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	20° C	Clear	Wind obs. (6 kph from 1 degs) was rejected.	16 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	23° C	-	Calm (0 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	23° C	Dry and partly cloudy.	Light winds from the N (6 kph at 1).	16 km Low: few Mid: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 2 hours ago	23° C	Dry	Wind obs. (10 kph from 167 degs) was rejected.
Seattle 49 km WSW 100m alt. 1 hour ago	29° C	-	Calm (0 kph at 72).

* 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.