– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 3 am Sat 07 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 3 am Sat 07 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–3 Weather Summary Heavy rain (total 32mm), heaviest during Sat night. Very mild (max 15°C on Sat morning, min 5°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, calm by Sun afternoon).									Days 4–6 Weather Summary Moderate rain (total 19mm), heaviest on Tue night. Very mild (max 18°C on Thu morning, min 9°C on Tue morning). Wind will be generally light.
	Saturday 7			Sunday 8			Monday 9			Tuesday 10			Wednesday 11			Thursday 12
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	rain shwrs	light rain	light rain	some clouds	cloudy	light rain	mod. rain	mod. rain	mod. rain	rain shwrs	some clouds	some clouds	some clouds	clear	clear	some clouds
Cloud base (m)	3000	6750	400	700	800	6900	2150	2350	550	500	450	1950	6850	7000	7150	7950	8800
km/h	SE	SSE	SW	SW	SW	ESE	SE	SE	SSW	SSE	S	S	SSE	SE	ESE	ESE	SE	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	18	3	0.3	—	—	4	7	8	7	5	—	—	—	—	—	—
max °C	15	13	10	8	7	6	11	8	9	10	10	12	17	15	13	18	15	12
min °C	13	12	7	7	6	5	9	7	7	9	10	11	15	13	13	16	13	11
chill °C	12	10	2	4	6	5	8	5	5	8	9	10	15	12	12	16	13	10

Freezing level m	2950	2900	1650	1450	1500	1800	2000	1700	2100	2500	2850	3000	3400	3500	3600	3650	3400	3050

	7:00	—	—	7:01	—	—	7:03	—	—	7:03	—	—	7:05	—	—	7:07	—	—
	—	4:39	—	—	4:38	—	—	4:37	—	—	4:36	—	—	4:35	—	—	4:34	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 32mm), heaviest during Sat night. Very mild (max 15°C on Sat morning, min 5°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, calm by Sun afternoon).

Mount Si Weather (Days 3-6):

Moderate rain (total 19mm), heaviest on Tue night. Very mild (max 18°C on Thu morning, min 9°C on Tue morning). 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
Auburn 39 km SW 119m alt. 1 hour ago	7°C	Dry	Calm (0 kph at 215).
Stampede Pass Airport 40 km SE 628m alt. 3 hours ago	5°C	Clear	Calm (0 kph at 0).	16 km
SeattleS.-Tacoma-Wa. 43 km WSW 137m alt. 2 hours ago	11°C	-	Light winds from the E (7 kph at 90).	36 km Mid: mostly cloudy
Monroe 44 km NW 80m alt. 3 hours ago	7°C	Dry	Calm (0 kph at 96).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	11°C	Mist -.	Calm (0 kph at 0).	8 km Low: scattered
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	11°C	Dry and partly cloudy.	Light winds from the E (7 kph at 100).	16 km Low: scattered Mid: broken High: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 57 minutes ago	9°C	Dry	Calm (0 kph at 71).
Seattle 49 km WSW 100m alt. 2 hours ago		-	Calm (3 kph at 340).
SHIP10166 51 km W 15m alt. 2 hours ago				- km

* 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.