– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 am Fri 17 Jul Local Time
Updates in:
hr min s
Update imminent

Issued: 10 am Fri 17 Jul 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 23°C on Sun afternoon, min 12°C on Fri morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 31°C on Wed afternoon, min 21°C on Mon morning). Wind will be generally light.
	Friday 17			Saturday 18			Sunday 19			Monday 20			Tuesday 21			Wednesday 22
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	clear	clear	clear	clear	some clouds	clear
Cloud base (m)	550	850		800	1650				9450	7150	6400	6150	8750	5650	7150	5050	4900	5250
km/h	W	W	ESE	WNW	NW	NE	NW	NW	E	SE	WNW	E	NW	NW	ESE	NW	NW	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	16	20	18	17	21	18	19	23	21	23	27	25	27	30	26	29	31	26
min °C	12	20	12	14	20	12	15	22	17	21	25	21	24	30	22	25	30	22
chill °C	12	20	12	14	20	12	15	22	17	21	25	21	24	30	22	25	30	22

Freezing level m	3950	3850	3900	3650	3650	4050	3950	4200	4400	4600	4550	4650	4700	4800	4800	4850	4850	4800

	5:26	—	—	5:26	—	—	5:28	—	—	5:30	—	—	5:31	—	—	5:31	—	—
	—	—	8:58	—	—	8:57	—	—	8:55	—	—	8:54	—	—	8:53	—	—	8:52

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 23°C on Sun afternoon, min 12°C on Fri morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 31°C on Wed afternoon, min 21°C on Mon morning). 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
Black Diamond 32 km SSW 192m alt. 2 hours ago		-	Calm (2 kph at 249).
Renton Airport 36 km WSW 218m alt. 2 hours ago	18° C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Auburn 39 km SW 119m alt. 3 hours ago	27° C	Dry	Calm (2 kph at 235).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	11° C	Dry and partly cloudy.	Wind obs. (7 kph from 1 degs) was rejected.	16 km Low: scattered
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	19° C	Dry and partly cloudy.	Light winds from the SW (15 kph at 220).	16 km Low: broken Mid: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	17° C	Dry and partly cloudy.	Light winds from the SSW (13 kph at 200).	16 km Low: few Mid: scattered High: scattered
Snohomish 49 km NW 196m alt. 3 hours ago	16° C	Dry	Calm (3 kph at 173).
Seattle 49 km WSW 100m alt. 51 minutes ago		-	Wind obs. (13 kph from 325 degs) was rejected.
BUOY-WPOW1 55 km W 3m alt. 36 minutes ago	17° C		Light winds from the SSE (18 kph at 160).
BUOY-46120 57 km W 3m alt. 2 hours ago	16° C		(7 kph at —)

* 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.