– Lat/Long: 47.51° N 121.74° W

Mount Si Weather Forecast

Cascade Range · United States

Issued: 3 am Thu 12 Nov Local Time

Updates in:

hr min s

Update imminent

Issued: 3 am Thu 12 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 31mm), heaviest during Fri afternoon. Very mild (max 16°C on Thu morning, min 7°C on Fri night). Mainly fresh winds.									Days 4–6 Weather Summary Heavy rain (total 28mm), heaviest during Sun afternoon. Mild temperatures (max 9°C on Tue morning, min 4°C on Mon night). Wind will be generally light.
	Thursday 12			Friday 13			Saturday 14			Sunday 15			Monday 16			Tuesday 17
	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night	AM	PM	night

	cloudy	cloudy	cloudy	cloudy	heavy rain	rain shwrs	rain shwrs	light rain	mod. rain	heavy rain	heavy rain	light rain	rain shwrs	rain shwrs	clear	clear	clear	some clouds
Cloud base (m)	5950	5800	5750	2900	1350	1600	500	750	800	450	400	400	450	1600	850		1550
km/h	SE	ESE	SE	SE	ESE	SSE	S	SSE	SE	S	SW	S	SSW	SW	SE	ESE	ESE	ESE
See all weather maps
cm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
mm	—	—	—	—	11	6	1.8	2	10	13	12	1.4	0.9	0.5	—	—	—	—
max °C	16	15	13	13	9	8	10	8	8	7	6	6	8	7	4	9	7	5
min °C	14	13	13	11	8	7	8	8	8	7	6	5	7	5	4	7	5	4
chill °C	14	12	11	11	8	5	6	6	6	7	4	4	6	5	3	7	3	1

Freezing level m	2900	2950	3000	2450	2000	1900	1600	1700	2100	1800	1400	1350	1400	1400	1450	1500	1650	1750

	7:07	—	—	7:09	—	—	7:09	—	—	7:11	—	—	7:13	—	—	7:13	—	—
	—	4:34	—	—	4:31	—	—	4:30	—	—	4:30	—	—	4:29	—	—	4:28	—

Mount Si Weather (Days 0-3):

The weather forecast for Mount Si is: Heavy rain (total 31mm), heaviest during Fri afternoon. Very mild (max 16°C on Thu morning, min 7°C on Fri night). Mainly fresh winds.

Mount Si Weather (Days 3-6):

Heavy rain (total 28mm), heaviest during Sun afternoon. Mild temperatures (max 9°C on Tue morning, 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
Renton 30 km WSW 160m alt. 50 minutes ago	12°C	Dry	Calm (2 kph at 85).
Renton Airport 36 km WSW 716m alt. 3 hours ago	11°C	Clear	Light winds from the SSE (6 kph at 150).	16 km
Auburn 39 km SW 119m alt. 1 hour ago	-1°C	-	Calm (0 kph at 322).
Stampede Pass Airport 40 km SE 628m alt. 2 hours ago	4°C	Fog -.	Calm (0 kph at 0).	1 km
Monroe 44 km NW 80m alt. 1 hour ago	12°C	Dry	Calm (0 kph at 69).
Seattle Tacoma International Airport 44 km WSW 716m alt. 3 hours ago	12°C	Dry and partly cloudy.	Light winds from the SE (7 kph at 140).	16 km Low: broken
Seattl / oeing Airport 44 km WSW 716m alt. 3 hours ago	12°C	Clear	Calm (0 kph at 0).	16 km
BUOY-EBSW1 46 km W 3m alt. 1 hour ago
Snohomish 49 km NW 196m alt. 53 minutes ago	13°C	Dry	Calm (0 kph at 66).
Seattle 49 km WSW 100m alt. 1 hour ago	20°C	-	Light winds from the WNW (13 kph at 285).

* 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.