– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 pm Sun 02 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 4 pm Sun 02 Aug 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 Sun afternoon. Warm (max 22°C on Wed morning, min 7°C on Sun night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Warm (max 22°C on Wed afternoon, min 11°C on Fri night). Wind will be generally light.
	Sun 2		Monday 3			Tuesday 4			Wednesday 5			Thursday 6			Friday 7
	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	clear	clear	clear	clear	clear	clear	clear	clear
Cloud base (m)	1800								9050								2550
km/h	NNW	N	E	N	ESE	SE	NNW	ENE	SSE	NW	WNW	WSW	W	SW	WSW	NW	N
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.2	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	9	8	13	16	16	19	20	20	22	22	22	20	22	20	16	18	17
min °C	8	7	11	14	15	17	19	19	20	22	19	19	21	16	15	17	11
chill °C	6	4	11	14	15	17	19	19	20	22	19	19	21	15	14	17	9

Freezing level m	2500	3350	3550	3900	4000	4050	4400	4650	4750	4850	4850	4750	4900	4750	4350	4200	3650

	—	—	5:46	—	—	5:48	—	—	5:48	—	—	5:50	—	—	5:52	—	—
	—	8:39	—	—	8:37	—	—	8:37	—	—	8:35	—	—	8:34	—	—	8:31

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Sun afternoon. Warm (max 22°C on Wed morning, min 7°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 22°C on Wed afternoon, min 11°C on Fri night). Wind will be generally light.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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. 1 hour ago	16° C	Dry	Calm (0 kph at 264).
Black Diamond 32 km SSW 192m alt. 1 hour ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	18° C	Clear	Light winds from the N (19 kph at 350).	16 km
Auburn 39 km SW 119m alt. 41 minutes ago		-	Calm (0 kph at 254).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	7° C	Dry and partly cloudy.	Light winds from the N (6 kph at 1).	16 km Low: broken
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	18° C	Dry and partly cloudy.	Light winds from the N (6 kph at 1).	16 km Low: few Mid: scattered
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	17° C	-	Light winds from the N (15 kph at 350).	16 km Low: few Mid: few
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 1 hour ago	13° C	Dry	Calm (0 kph at 193).
Seattle 49 km WSW 100m alt. 2 hours ago		-

* 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.