– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 9 am Sat 14 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 9 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 17mm), heaviest on Sat night. Very mild (max 10°C on Sat morning, min 4°C on Sun night). Wind will be generally light.									Days 4–6 Weather Summary Mostly dry. Mild temperatures (max 8°C on Wed morning, min 4°C on Tue afternoon). Wind will be generally light.
	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	mod. rain	light rain	light rain	rain shwrs	clear	rain shwrs	some clouds	clear	clear	some clouds	cloudy	cloudy	light rain	cloudy	some clouds	some clouds
Cloud base (m)	850	600	600	550	1450	700	2200	1900	800	800	800		5450	2750	1550	850	1800	1650
km/h	SSW	SE	SE	SW	SW	S	SW	W	ESE	NNE	NNE	ESE	ESE	ESE	E	ESE	ESE	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	0.4	1.7	7	2	4	1.2	—	0.1	—	—	—	—	—	—	0.1	—	—	—
max °C	10	9	9	9	7	5	7	6	4	7	6	4	8	6	5	8	6	4
min °C	9	8	8	8	5	4	7	4	4	5	4	4	7	5	4	6	4	4
chill °C	8	6	6	5	3	3	7	4	4	5	3	2	4	2	1	4	2	2

Freezing level m	1850	1850	2200	1600	1350	1250	1300	1350	1150	1150	1350	1700	1600	1450	1450	1550	1500	1550

	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 17mm), heaviest on Sat night. Very mild (max 10°C on Sat morning, min 4°C on Sun night). Wind will be generally light.

Mount Si Weather (Days 3-6):

Mostly dry. Mild temperatures (max 8°C on Wed morning, min 4°C on Tue afternoon). 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	14°C	Dry	Calm (0 kph at 158).
Renton Airport 36 km WSW 218m alt. 2 hours ago	14°C	Dry and cloudy.	Wind obs. (7 kph from 1 degs) was rejected.	16 km Low: broken Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago	12°C	Dry	Calm (0 kph at 309).
Stampede Pass Airport 40 km SE 628m alt. 1 hour ago	4°C	-	Calm (0 kph at 0).	0.0 km High: few
Monroe 44 km NW 80m alt. 1 hour ago	11°C	Dry	Calm (0 kph at 161).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	15°C	Dry and cloudy.	Light winds from the S (15 kph at 180).	16 km Low: broken Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	16°C	Dry and cloudy.	Light winds from the S (17 kph at 190).	16 km Low: scattered Mid: overcast
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 2 hours ago	14°C	Dry	Light winds from the SSE (10 kph at 153).
Seattle 49 km WSW 100m alt. 3 hours ago	16°C	-	Calm (2 kph at 29).

* 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.