– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 3 pm Wed 11 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 3 pm Wed 11 Nov Local Time

Updates in:

hr min s

Update imminent

2 Mount Si Elevations: 2 Forecast Elevations:

	Days 1–4 Weather Summary Light rain (total 10mm), mostly falling on Fri afternoon. Very mild (max 15°C on Thu morning, min 7°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the SE by Thu night).											Days 5–7 Weather Summary Heavy rain (total 26mm), heaviest during Sun morning. Mild temperatures (max 9°C on Sat night, min 4°C on Mon night). Wind will be generally light.
	Wed 11		Thursday 12			Friday 13			Saturday 14			Sunday 15			Monday 16
	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	some clouds	some clouds	cloudy	cloudy	cloudy	cloudy	light rain	rain shwrs	rain shwrs	light rain	mod. rain	mod. rain	light rain	rain shwrs	rain shwrs	rain shwrs	some clouds
Cloud base (m)	6200	5900	6050	5750	6050	3000	1300	1450	550	600	600	400	400	500	1650	1600	1550
km/h	SE	ESE	ESE	ESE	SE	SE	SE	SE	S	SE	SE	SSW	SW	S	SSW	SW	SE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	—	—	4	5	0.6	1.1	10	8	3	3	0.4	0.2	—
max °C	14	12	15	15	13	13	9	9	9	8	9	8	7	6	8	7	6
min °C	13	11	13	13	12	11	9	7	8	8	8	8	7	5	8	5	4
chill °C	12	11	13	12	10	10	8	6	7	6	6	7	5	4	7	4	4

Freezing level m	2950	3050	2800	2900	3050	2400	2000	1950	1800	1750	2200	1850	1550	1450	1450	1450	1350

	—	—	7:07	—	—	7:09	—	—	7:09	—	—	7:11	—	—	7:13	—	—
	4:35	—	—	4:34	—	—	4:31	—	—	4:30	—	—	4:30	—	—	4:29	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Light rain (total 10mm), mostly falling on Fri afternoon. Very mild (max 15°C on Thu morning, min 7°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the SE by Thu night).

Mount Si Weather (Days 3-6):

Heavy rain (total 26mm), heaviest during Sun morning. Mild temperatures (max 9°C on Sat night, min 4°C on Mon 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
High Point wx 20 km WSW 215m alt. 2 hours ago	13°C	-
Renton 30 km WSW 160m alt. 1 hour ago	13°C	Dry	Calm (0 kph at 51).
Redmond 32 km WNW 112m alt. 2 hours ago	11°C	-
Renton Airport 36 km WSW 218m alt. 2 hours ago	13°C	Clear	Calm (0 kph at 0).	16 km
Auburn 39 km SW 119m alt. 30 minutes ago	3°C	Dry	Calm (0 kph at 322).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	6°C	Clear	Wind obs. (6 kph from 1 degs) was rejected.	14 km
Monroe 44 km NW 80m alt. 54 minutes ago	10°C	Dry	Calm (0 kph at 202).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	15°C	Clear	Light winds from the SSE (9 kph at 160).	16 km
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	15°C	Dry and partly cloudy.	Light winds from the S (6 kph at 190).	16 km Low: few Mid: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour 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.