– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 10 pm Mon 24 Aug Local Time
Updates in:
hr min s
Update imminent

Issued: 10 pm Mon 24 Aug 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 28°C on Tue afternoon, min 13°C on Wed night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm (max 21°C on Sun afternoon, min 11°C on Thu night). Wind will be generally light.
		Tuesday 25			Wednesday 26			Thursday 27			Friday 28			Saturday 29
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	clear	clear	clear	clear	some clouds	light rain	rain shwrs	clear	clear	some clouds	some clouds	clear	clear
Cloud base (m)	9600	9600	4350						850		600	1650	2000	6000	9000	8200
km/h	ESE	SW	W	ESE	W	WSW	SSE	W	W	S	WNW	NW	NE	NW	NW	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.4	0.5	—	—	—	—	—	—
max °C	21	26	28	22	20	23	19	17	19	15	15	19	15	15	20	16
min °C	20	22	27	15	17	23	13	14	17	11	12	19	11	12	19	11
chill °C	20	22	27	15	17	23	13	14	17	11	12	19	11	12	19	11

Freezing level m	4150	4200	4200	4200	4050	4050	3700	3500	2900	3250	3300	3250	3700	3550	3700	3900

	—	6:15	—	—	6:16	—	—	6:18	—	—	6:18	—	—	6:20	—	—
	—	—	—	8:00	—	7:59	—	—	7:57	—	—	7:54	—	—	7:52	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Warm (max 28°C on Tue afternoon, min 13°C on Wed night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 21°C on Sun afternoon, min 11°C on Thu 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. 1 hour ago	17°C	Dry	Calm (0 kph at 44).
Black Diamond 32 km SSW 192m alt. 54 minutes ago		-	Calm (0 kph at 0).
Renton Airport 36 km WSW 218m alt. 2 hours ago	21°C	Clear	Light winds from the NNW (13 kph at 340).	13 km
Auburn 39 km SW 119m alt. 40 minutes ago	17°C	Dry	Calm (0 kph at 105).
Monroe 44 km NW 80m alt. 1 hour ago	24°C	Dry	Calm (0 kph at 286).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	19°C	Clear	Calm (0 kph at 0).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	20°C	Dry and partly cloudy.	Light winds from the NNE (15 kph at 20).	16 km Low: scattered
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 45 minutes ago	13°C	Dry	Calm (0 kph at 176).
Seattle 49 km WSW 100m alt. 1 hour 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.