– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 3 pm Sat 14 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 3 pm Sat 14 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Moderate rain (total 17mm), heaviest on Sat night. Mild temperatures (max 9°C on Sat afternoon, min 4°C on Sun night). Wind will be generally light.											Days 5–7 Weather Summary Mostly dry. Mild temperatures (max 8°C on Fri morning, min 3°C on Wed night). Wind will be generally light.
	Sat 14		Sunday 15			Monday 16			Tuesday 17			Wednesday 18			Thursday 19
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	mod. rain	light rain	light rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs	clear	clear	clear	cloudy	light rain	some clouds	light rain	some clouds	some clouds
Cloud base (m)	600	600	550	800	800	2200	1700	400	850	850		5400	1700	2000	1750	550	850
km/h	SE	SE	SSW	SW	S	SW	W	W	N	NNW	E	ESE	ESE	ESE	E	ESE	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	1.1	8	1.9	2	2	0.1	0.1	0.5	—	—	—	—	0.1	—	0.2	—	—
max °C	9	9	9	7	5	7	6	5	6	5	4	7	5	4	6	6	4
min °C	9	8	8	6	4	7	4	4	5	4	4	7	5	3	5	5	3
chill °C	8	6	5	4	3	7	4	4	5	3	2	4	2	0	3	3	3

Freezing level m	1800	2200	1550	1350	1250	1300	1350	1200	1150	1250	1650	1600	1300	1450	1250	1300	1350

	—	—	7:11	—	—	7:13	—	—	7:13	—	—	7:16	—	—	7:16	—	—
	4:30	—	—	4:30	—	—	4:29	—	—	4:28	—	—	4:27	—	—	4:25	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Moderate rain (total 17mm), heaviest on Sat night. Mild temperatures (max 9°C on Sat afternoon, min 4°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Mild temperatures (max 8°C on Fri morning, min 3°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. 1 hour ago	13°C	Dry	Calm (0 kph at 89).
Renton Airport 36 km WSW 716m alt. 2 hours ago	13°C	Dry and cloudy.	Wind obs. (7 kph from 1 degs) was rejected.	16 km Low: overcast
Auburn 39 km SW 119m alt. 43 minutes ago	3°C	Dry	Calm (0 kph at 78).
Stampede Pass Airport 40 km SE 628m alt. 47 minutes ago	3°C	-	Calm (0 kph at 0).	0.0 km High: few
Monroe 44 km NW 80m alt. 1 hour ago	9°C	Dry	Calm (0 kph at 155).
Seattle Tacoma International Airport 44 km WSW 716m alt. 2 hours ago	14°C	Dry and cloudy.	Light winds from the ESE (19 kph at 110).	16 km Low: scattered Mid: overcast
Seattl / oeing Airport 44 km WSW 716m alt. 2 hours ago	13°C	Dry and cloudy.	Light winds from the SE (13 kph at 140).	16 km Low: overcast
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Seattle 49 km WSW 100m alt. 2 hours ago	8°C	-	Calm (0 kph at 5).
BUOY-WPOW1 55 km W 3m alt. 1 hour ago	14°C		Moderate winds from the SSE (21 kph at 150).

* 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.