– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 9 am Fri 13 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 9 am Fri 13 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 35mm), heaviest during Fri afternoon. Very mild (max 14°C on Fri morning, min 4°C on Sun night). Mainly fresh winds.									Days 4–6 Weather Summary Light rain (total 3mm), mostly falling on Wed afternoon. Mild temperatures (max 8°C on Tue morning, min 2°C on Wed night). Wind will be generally light.
	Friday 13			Saturday 14			Sunday 15			Monday 16			Tuesday 17			Wednesday 18
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	heavy rain	rain shwrs	rain shwrs	light rain	mod. rain	light rain	light rain	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	rain shwrs	some clouds	light rain	light rain	rain shwrs
Cloud base (m)		600	500	1450	600	800	500	500	700	1600	950	700	800	800		2450	700	400
km/h	SE	WNW	SSW	S	SE	SE	SW	SW	S	SSW	SW	S	S	E	ESE	ESE	SE	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	14	4	0.3	0.3	9	5	1.3	1.4	0.1	0.2	0.1	0.1	0.1	—	0.1	2	0.5
max °C	14	9	8	9	9	9	8	7	5	7	6	5	8	7	5	7	4	4
min °C	13	8	8	8	8	8	7	6	4	7	5	4	6	5	4	6	4	2
chill °C	12	6	8	6	6	5	5	5	3	7	4	3	6	2	0	6	4	0

Freezing level m	2700	2100	1700	1750	1750	2100	1650	1450	1250	1300	1350	1250	1300	1500	1700	1450	1150	1050

	7:09	—	—	7:09	—	—	7:11	—	—	7:13	—	—	7:13	—	—	7:16	—	—
	—	4:31	—	—	4:30	—	—	4:30	—	—	4:29	—	—	4:28	—	—	4:27	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 35mm), heaviest during Fri afternoon. Very mild (max 14°C on Fri morning, min 4°C on Sun night). Mainly fresh winds.

Mount Si Weather (Days 3-6):

Light rain (total 3mm), mostly falling on Wed afternoon. Mild temperatures (max 8°C on Tue morning, min 2°C on Wed 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
Renton 30 km WSW 160m alt. 2 hours ago	11°C	Dry	Calm (2 kph at 37).
Renton Airport 36 km WSW 218m alt. 2 hours ago	12°C	Light rain .	Calm (0 kph at 0).	8 km Mid: overcast
Auburn 39 km SW 119m alt. 1 hour ago	12°C	Dry	Calm (2 kph at 235).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	6°C	Dry and partly cloudy.	Calm (0 kph at 0).	16 km Low: few Mid: broken
Monroe 44 km NW 80m alt. 1 hour ago	-1°C	-	Calm (0 kph at 260).
Seattl / oeing Airport 44 km WSW 218m alt. 2 hours ago	12°C	Light rain .	Light winds from the SE (6 kph at 140).	8 km Mid: overcast
Seattle Tacoma International Airport 44 km WSW 218m alt. 2 hours ago	12°C	Light rain .	Light winds from the ESE (11 kph at 120).	10 km Mid: few High: broken
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 2 hours ago	14°C	Dry	Wind obs. (10 kph from 133 degs) was rejected.
Seattle 49 km WSW 100m alt. 1 hour ago	16°C	-	Wind obs. (8 kph from 327 degs) was rejected.

* 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.