– Lat/Long: 47.51° N 121.74° W

Mount Si
Weather Forecast, United States
Issued: 4 am Mon 29 Jun Local Time
Updates in:
hr min s
Update imminent

Issued: 4 am Mon 29 Jun Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Some drizzle, heaviest during Mon night. Very mild (max 14°C on Mon afternoon, min 9°C on Mon morning). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Warm (max 20°C on Sat afternoon, min 9°C on Thu morning). Wind will be generally light.
	Monday 29			Tuesday 30			Wednesday 1			Thursday 2			Friday 3			Saturday 4
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	rain shwrs	rain shwrs	light rain	rain shwrs	some clouds	cloudy	rain shwrs	some clouds	some clouds	some clouds	some clouds	some clouds	rain shwrs	rain shwrs	some clouds	some clouds	cloudy
km/h	W	NW	W	WSW	WSW	W	SW	WSW	W	W	WNW	SSW	WSW	W	SSE	WSW	WNW	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.2	0.2	0.4	0.1	0.2	—	—	0.2	—	—	—	—	—	0.1	0.1	—	—	—
max °C	10	14	13	11	14	14	10	12	12	12	17	16	14	17	16	17	20	17
min °C	9	11	10	10	12	9	10	11	9	9	16	11	12	17	11	14	19	11
chill °C	9	11	10	10	12	9	9	11	9	9	16	11	12	17	11	14	19	11

Freezing level m	3750	3650	3450	3200	3100	3150	2750	2800	3150	2850	2900	2750	3300	3550	3750	3450	3450	3400
Cloud base (m)	400	450	800	550	800	750	650	700	750	650	1600	1850	950	900	7200	3250	3100	2100

	5:11	—	—	5:11	—	—	5:13	—	—	5:13	—	—	5:13	—	—	5:15	—	—
	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:07	—	—	9:06

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Some drizzle, heaviest during Mon night. Very mild (max 14°C on Mon afternoon, min 9°C on Mon morning). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Warm (max 20°C on Sat afternoon, min 9°C on Thu 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
Harman Heights wx 6 km SSW 251m alt. 2 hours ago	14° C	Dry	Calm (0 kph at 336).
Snoqualmie Pass 30 km ESE 824m alt. 42 minutes ago	9° C	-	Calm (0 kph at 171).
Renton 30 km WSW 160m alt. 2 hours ago	12° C	Dry	Calm (3 kph at 217).
Grotto wx 35 km NE 321m alt. 2 hours ago	11° C	Dry	Calm (3 kph at 251).
Renton Airport 36 km WSW 218m alt. 2 hours ago	14° C	Dry and cloudy.	Light winds from the SSW (7 kph at 210).	16 km Low: overcast
Auburn 39 km SW 119m alt. 40 minutes ago	14° C	Dry	Calm (0 kph at 266).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	5° C	Fog -.	Wind obs. (9 kph from 1 degs) was rejected.	0 km
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	13° C	Dry and cloudy.	Light winds from the SSE (11 kph at 160).	16 km Low: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	12° C	Dry and cloudy.	Light winds from the SSW (15 kph at 210).	16 km Low: overcast
Snohomish 49 km NW 196m alt. 1 hour ago	14° C	Dry	Light winds from the S (8 kph at 178).

* 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.