– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 3 am Sun 01 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 3 am Sun 01 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Mostly dry. Very mild (max 12°C on Mon morning, min 5°C on Sun night). Wind will be generally light.									Days 4–6 Weather Summary Light rain (total 6mm), mostly falling on Thu night. Very mild (max 13°C on Thu morning, min 8°C on Wed night). Wind will be generally light.
	Sunday 1			Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Friday 6
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	clear	clear	cloudy	cloudy	light rain	cloudy	some clouds	clear	some clouds	cloudy	cloudy	clear	cloudy	mod. rain	cloudy	cloudy	cloudy
Cloud base (m)			8800	5550	5300	2200	1950	2000	2300	2400	6650	1550	1650	4750	650	800	2250	1900
km/h	NW	NW	E	SE	SSE	SE	SSE	WNW	ESE	SSW	SW	S	SSE	WSW	SW	S	SSW	SE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	0.1	—	—	—	—	—	—	—	—	6	—	—	—
max °C	9	8	6	12	10	9	11	10	7	12	11	9	13	11	9	12	12	13
min °C	8	6	5	11	9	8	11	8	7	11	10	8	11	10	8	10	11	12
chill °C	8	6	4	11	8	7	11	8	7	11	10	8	11	9	6	10	11	11

Freezing level m	1850	2000	3100	3250	3050	2400	2200	2250	2550	2650	2400	2350	2550	2550	2100	2350	2800	3100

	5:50	—	—	6:52	—	—	6:54	—	—	6:54	—	—	6:56	—	—	6:58	—	—
	3:49	—	—	—	4:46	—	—	4:45	—	—	4:44	—	—	4:43	—	—	4:42	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Mostly dry. Very mild (max 12°C on Mon morning, min 5°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 6mm), mostly falling on Thu night. Very mild (max 13°C on Thu morning, min 8°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. 2 hours ago	6°C	Dry	Calm (0 kph at 236).
Renton Airport 36 km WSW 218m alt. 3 hours ago	8°C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Auburn 39 km SW 119m alt. 1 hour ago	19°C	Dry	Wind obs. (6 kph from 235 degs) was rejected.
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	1°C	Clear	Calm (0 kph at 0).	16 km
Monroe 44 km NW 80m alt. 1 hour ago	9°C	Dry	Calm (0 kph at 127).
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	8°C	Dry and cloudy.	Calm (0 kph at 0).	16 km Low: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	7°C	Dry and cloudy.	Light winds from the ENE (6 kph at 70).	16 km Low: broken Mid: overcast
BUOY-EBSW1 46 km W 3m alt. 2 hours ago
Snohomish 49 km NW 196m alt. 1 hour ago	3°C	Dry	Calm (0 kph at 202).
Seattle 49 km WSW 100m alt. 2 hours ago		-	Calm (2 kph at 180).

* 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.