– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 9 pm Sun 01 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 9 pm Sun 01 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Mostly dry. Mild temperatures (max 8°C on Mon morning, min 3°C on Wed afternoon). Wind will be generally light.										Days 5–7 Weather Summary Light rain (total 3mm), mostly falling on Wed night. Very mild (max 12°C on Sat morning, min 2°C on Wed night). Mainly fresh winds.
		Monday 2			Tuesday 3			Wednesday 4			Thursday 5			Friday 6
	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	clear	cloudy	cloudy	cloudy	some clouds	some clouds	clear	some clouds	light rain	rain shwrs	rain shwrs	some clouds	light rain	cloudy	some clouds	cloudy
Cloud base (m)		7100	5550	2750	2750	3300		9150		500	800	4600	2950	1650	950	6000
km/h	N	SSE	SE	ESE	SSW	WSW	WSW	SW	SW	SW	SSW	SW	SW	SW	SW	SSW
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	—	—	0.1	2	0.2	—	0.5	—	—	—
max °C	6	8	7	7	7	6	5	7	6	4	3	5	5	4	4	9
min °C	4	8	6	6	7	5	5	6	3	2	2	5	3	4	4	6
chill °C	2	6	5	6	7	4	4	4	-1	-1	2	2	-3	-1	0	5

Freezing level m	3150	3300	3200	2500	2550	2450	2250	2300	2250	1750	1700	2200	2000	2100	2300	2950

	—	6:52	—	—	6:54	—	—	6:54	—	—	6:56	—	—	6:58	—	—
	—	—	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. Mild temperatures (max 8°C on Mon morning, min 3°C on Wed afternoon). Wind will be generally light.

Mount Si Weather (Days 3-6):

Light rain (total 3mm), mostly falling on Wed night. Very mild (max 12°C on Sat morning, min 2°C on Wed night). Mainly fresh winds.

This table gives the weather forecast for Mount Si at the specific elevation of 1270 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	3°C	Dry	Calm (0 kph at 60).
Black Diamond 32 km SSW 192m alt. 3 hours ago		-	Calm (2 kph at 69).
Benson Hill wx 35 km SW 144m alt. 2 hours ago	3°C	Dry	Calm (0 kph at 353).
Renton Airport 36 km WSW 218m alt. 3 hours ago	6°C	Clear	Calm (0 kph at 0).	16 km
Auburn 39 km SW 119m alt. 2 hours ago	10°C	Dry	Calm (0 kph at 268).
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	1°C	-	Calm (0 kph at 5).
Seattl / oeing Airport 44 km WSW 218m alt. 3 hours ago	6°C	Clear	Calm (0 kph at 0).	14 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 3 hours ago	6°C	Clear	Calm (0 kph at 0).	16 km
BUOY-EBSW1 46 km W 3m alt. 2 hours 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.