– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 9 am Sun 15 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 9 am Sun 15 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Light rain (total 8mm), mostly falling on Sun afternoon. Mild temperatures (max 9°C on Sun morning, min 3°C on Mon night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Mild temperatures (max 9°C on Wed morning, min 2°C on Thu night). Wind will be generally light.
	Sunday 15			Monday 16			Tuesday 17			Wednesday 18			Thursday 19			Friday 20
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	light rain	light rain	rain shwrs	clear	clear	clear	some clouds	clear	clear	some clouds	cloudy	cloudy	some clouds	some clouds	clear	clear	some clouds	some clouds
Cloud base (m)	600	550	1800	2000	1800	900	900	750		8050	5600	2300	2450	2650			6400	4600
km/h	SW	SSW	S	WSW	NW	ESE	SSW	ENE	E	ESE	ESE	ESE	E	NE	ESE	SSW	SE	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	3	4	0.5	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	9	6	5	8	6	4	6	6	4	9	6	4	7	5	3	6	5	4
min °C	7	5	4	7	4	3	6	4	4	7	5	3	6	4	2	5	3	3
chill °C	4	3	3	7	4	3	6	3	2	4	3	1	6	3	2	5	1	1

Freezing level m	1700	1350	1300	1300	1400	1250	1200	1250	1600	1650	1550	1300	1350	1450	1200	1200	1300	1500

	7:11	—	—	7:13	—	—	7:13	—	—	7:16	—	—	7:16	—	—	7:18	—	—
	—	4:30	—	—	4:29	—	—	4:28	—	—	4:27	—	—	4:25	—	—	4:24	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 8mm), mostly falling on Sun afternoon. Mild temperatures (max 9°C on Sun morning, min 3°C on Mon night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Mild temperatures (max 9°C on Wed morning, min 2°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	11°C	Dry	Calm (0 kph at 122).
Renton Airport 36 km WSW 218m alt. 3 hours ago	12°C	Dry and cloudy.	Wind obs. (9 kph from 150 degs) was rejected.	16 km Low: scattered Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago	14°C	Dry	Calm (0 kph at 89).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	4°C	Light rain .	Calm (0 kph at 0).	0 km Mid: broken High: overcast
Monroe 44 km NW 80m alt. 49 minutes ago	12°C	Dry	Calm (0 kph at 235).
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	12°C	Dry and partly cloudy.	Light winds from the SSE (13 kph at 160).	16 km Low: few Mid: broken High: broken
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	11°C	Dry and partly cloudy.	Light winds from the SSE (15 kph at 150).	16 km Low: few Mid: broken High: broken
BUOY-EBSW1 46 km W 3m alt. 2 hours ago
Snohomish 49 km NW 196m alt. 2 hours ago	13°C	Dry	Light winds from the SSE (11 kph at 154).
Seattle 49 km WSW 100m alt. 1 hour ago	17°C	-	Calm (0 kph at 55).

* 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.