– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 3 am Sat 14 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 3 am Sat 14 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Moderate rain (total 15mm), heaviest on Sat night. Freeze-thaw conditions (max 5°C on Sat afternoon, min -1°C on Mon night). Winds decreasing (fresh winds from the SW on Sat night, calm by Mon afternoon).									Days 4–6 Weather Summary Mostly dry. Freeze-thaw conditions (max 2°C on Tue night, min -1°C on Tue morning). Winds increasing (calm on Tue morning, strong winds from the ESE by Tue night).
	Saturday 14			Sunday 15			Monday 16			Tuesday 17			Wednesday 18			Thursday 19
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	rain shwrs	light rain	heavy rain	light rain	cloudy	clear	clear	some clouds	some clouds	some clouds	clear	some clouds	cloudy	cloudy	some clouds	some clouds	clear	some clouds
Cloud base (m)	800	600	550	500	650	850	1800	6600	900	750	750			1650	800	1750	800	750
km/h	SSW	SSE	SSE	SW	SW	SW	SW	SW	WSW	SSW	ESE	ESE	ESE	ESE	E	E	E	E
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.5	1.3	12	1.6	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	4	5	5	2	1	0	1	1	0	0	1	2	2	0	1	1	1	0
min °C	3	3	3	2	0	0	0	1	-1	-1	1	1	1	-1	1	1	1	-1
chill °C	-2	-2	-3	-4	-7	-6	-2	1	-3	-1	-2	-5	-4	-6	-3	-2	-2	-1

Freezing level m	1800	1800	2200	1550	1350	1250	1350	1450	1200	1200	1400	1600	1500	1150	1500	1400	1400	1300

	7:09	—	—	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 15mm), heaviest on Sat night. Freeze-thaw conditions (max 5°C on Sat afternoon, min -1°C on Mon night). Winds decreasing (fresh winds from the SW on Sat night, calm by Mon afternoon).

Mount Si Weather (Days 3-6):

Mostly dry. Freeze-thaw conditions (max 2°C on Tue night, min -1°C on Tue morning). Winds increasing (calm on Tue morning, strong winds from the ESE by Tue night).

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
North Bend 7 km S 296m alt. 2 hours ago	5°C	Dry	Calm (0 kph at 113).
Renton 30 km WSW 160m alt. 2 hours ago	8°C	Dry	Calm (0 kph at 73).
Redmond 32 km WNW 112m alt. 2 hours ago	8°C	-
Covington 32 km SSW 166m alt. 1 hour ago	7°C	Dry	Calm (0 kph at 304).
Pines wx 34 km WSW 77m alt. 4 hours ago	9°C	-	Calm (0 kph at 201).
Renton Airport 36 km WSW 716m alt. 2 hours ago	8°C	Clear	Light winds from the S (6 kph at 180).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	11°C	Dry	Calm (3 kph at 252).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	3°C	Fog -.	Calm (0 kph at 0).	0 km
Monroe 44 km NW 80m alt. 3 hours ago	10°C	Dry	Calm (0 kph at 94).
Seattle Tacoma International Airport 44 km WSW 716m alt. 2 hours ago	8°C	-	Light winds from the S (11 kph at 170).	16 km Low: few

* 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.